41results about How to "Sampling is convenient" patented technology

The invention relates to a kit for detecting colorectal cancer and precancerous lesions and a use method thereof. The invention provides the kit for detecting colorectal cancer and precancerous lesions, and the kit comprises a nucleic acid separation and purification reagent, a DNA sulfite conversion reagent, a KRAS gene mutation detection reagent, an SDC2 and SFRP2 gene methylation detection reagent and a fecal occult blood detection reagent, wherein the nucleic acid separation and purification reagent is used for separating and purifying human DNA in a fecal sample; and the DNA sulfite conversion reagent is used for converting the partial purified human DNA into sulfite for subsequent detection of the methylation level of SDC2 and SFRP2 genes. The sensitivity of the kit for detecting thecolorectal cancer can reach up to 90% or more and the specificity is about 85%, thereby realizing high-sensitivity and high-specificity detection of the colorectal cancer; and the kit provided by theinvention can detect most precancerous lesions of the colorectal cancer to realize ultra-early detection of the colorectal cancer, and can greatly reduce missed diagnosis and missed detection rates of clinical existing methods when being used for assisting clinical diagnosis.

The invention relates to a straight circulation water tank device for simulating resuspension of bottom mud sediment under the action of reversing currents. The straight circulation water tank device comprises a long and straight water tank, a bidirectional water supplying and discharging pipeline system, a water current power and control device and a flowing speed measuring and sampling device, wherein the long and straight water tank is connected with the water current power and control device through the bidirectional water supplying and discharging pipeline system, and the flowing speed measuring and sampling device is fixedly installed on the edge of the wall of the long and straight water tank, the water current power and control device provides power for water currents and controls the flowing speed and the flowing direction, the reversing currents are provided for the long and straight water tank through the bidirectional water supplying and discharging pipeline system, and thus resuspension of the sediment is achieved. The straight circulation water tank device has the advantages that the ups and downs and the resuspension of bottom mud under the action of the tide reversing currents in tidal reach can be simulated truly, and water samples at different depths can be collected under a certain hydraulic condition. The straight circulation water tank device is suitable for studying of quantitative relation among water, sediment and pollutants and is an effective device for studying the resuspension release effect of bottom mud pollutants in a river mouth area.

The invention relates to a device for sampling a biomembrane on the outer surface of a pipe growth ring and aims to solve the problems that the biomembrane on the outer surface of a pipe growth ring is inconvenient to sample and can not realize on-line sampling, and the microbial growth environment and tissue structure of the biomembrane on the outer surface of the pipe growth ring can be changed. The device comprises an electric push rod, a sampling bottle, a circular-truncated-cone-shaped rubber plug, a round scrapper, a rubber pipe, a connecting pipe, a colleting pot, a thermometer, a pressure gage, a vacuum pump and an electric heating element, wherein the rod-pushing end of the electric push rod is connected with the bottom of the sampling bottle; the round scrapper is connected at a through hole at the large diameter end of the circular-truncated-cone-shaped rubber plug; the bottom of the sampling bottle is connected with one end of the rubber pipe; the other end of the rubber pipe is connected with the inlet of the collecting pot; and the electric heating element is arranged at the periphery of the collecting pot. The device is used for sampling the biomembrane on the outer surface of the pipe growth ring.

The invention provides a directly-pushing type soil sampling drilling tool assembly. The directly-pushing type soil sampling drilling tool assembly comprises an impact holding shaft, an impact inner tube, an impact outer tube, a sampling tube and a drill bit. The sampling tube is connected with the bottom end of the impact inner tube. The drill bit is connected with the bottom end of the impact outer tube. The impact outer tube is arranged on the outer sides of the sampling tube and the impact inner tube in a sleeving mode, wherein the sampling tube and the impact inner tube are connected together. The drill bit is hollow and communicates with the bottom end of the sampling tube. The impact holding shaft is mounted at the top end of the impact outer tube. The directly-pushing type soil sampling drilling tool assembly can avoid formation of earth-surface wound surface, sampling is convenient, and secondary pollution of samples can be avoided.

The invention provides a method for analyzing tiny particles in drinking water. The method for analyzing the tiny particles in the drinking water comprises the following steps of A: dyeing a drinkingwater sample by using Nile red, then performing filtering, and collecting the tiny particles on filter paper; and B, detecting and analyzing chemical components of the tiny particles by adopting an FTIR infrared spectrometer, a scanning electron microscope and an X-ray spectrometer. According to the analysis method, the chemical components of the tiny particles in the water can be identified; thecontent of the chemical components can be qualitatively or semi-quantitatively analyzed; an analysis result is accurate; and sampling is easy.

The invention discloses a special hospital bed for clinical digestive medicine use. According to the special hospital bed for clinical digestive medicine use, a water tank is fixedly connected with atop wall of a bed-head box; a liquid inlet is formed at the top of the water tank; a liquid outlet of the water tank is fixedly sleeved with a piston tube; a side wall of the piston tube communicateswith one end of a liquid-spraying pipe; the other end of the liquid-spraying pipe sequentially penetrates through two side walls of the bed-head box in a fixed way; and position adjustment of a bearing plate is realized by combination of a screw, the bearing plate and a liquid receiver tank, thereby facilitating sudden vomiting of a patient as well as achieving timely cleaning. Moreover, the wholehospital bed is simple to operate, so that, the hospital bed can be operated by a caregiver or by a patient himself / herself; and thus, sanitary ward environment is ensured.

The invention provides high-tensile strength anti-hidden cracking solar cell back side silver slurry and a preparation method thereof. Technical problems are solved that firstly, a large area of a silicon layer falls off during a tensile test caused by the fact that cell sheets are almost in the hidden cracked state after the current silver slurry is applied to the surfaces of the silicon sheets; and secondly, the tensile of a back pole of each cell sheet is 2.5N generally. The high-tensile strength anti-hidden cracking solar cell back side silver slurry comprises following components of, by weight, 28-46% of sheet-shaped silver powder, 12-28% of nano silver powder, 3.2-5.8% of glass powder, 25-30% of organic adhesives, 0.3-1.6% of adhesion promoter, and 0.8-1.5% of auxiliaries, 3-5% of additives, wherein the sum of the components in percentage by weight is 100%. According to the high-tensile strength anti-hidden cracking solar cell back side silver slurry and the preparation method thereof, the tension of the back side can reach 4N or above, the welding performance is strong and the service life is long.

The invention discloses an online cement granularity detection device capable of improving the measurement effect. The online cement granularity detection device comprises a cement tank, wherein sliding rods are rotationally connected to two sides of the bottom of an inner cavity of the cement tank through rotating seats, sliding sleeves are connected to the surfaces of the sliding rods in a sliding manner, three sampling cylinders are fixedly connected to the surfaces of the sliding sleeves, first electric telescopic rods are fixedly connected to the bottoms of the three sampling cylinders, and sampling slots are formed in the surfaces of the sampling cylinders. The online cement granularity detection device relates to the technical field of cement granularity detection. According to theonline cement granularity detection device, by virtue of the cooperation of magnets and electric magnets, baffles can automatically slide so as to control the opening and closing of the sampling slots, so that the sampling is convenient; and by utilizing the first electric telescopic rods, the three sampling cylinders can be simultaneously or respectively lifted, the heights of the three samplingcylinder can be adjusted, and the cement in different depths can be sampled and detected, so that the detection data is relatively accurate, and the automatic operation is relatively convenient.

The invention discloses a dedicated collection device for glass silica sand, the device includes a support platform, the said support platform consists of a top board which is horizontally installed, a bottom board which is horizontally installed and a support board which is vertically installed, the said support board is positioned between the said top board and the said bottom board, and a running motor is placed above the said top board, a trolley track is positioned on the said support board; a screw is connected with a rotating shaft of the said running motor through a coupling; the said screw passes through the said top board, one end of the screw is connected with the said bottom board, and the said running motor drives the said screw to rotate. The dedicated collection device for glass silica sand is of simple structure, is convenient for sampling, and requires no manual sampling, saves the labor cost, improves the work efficiency, and enables collected samples to be more accurate than samples collected from surfaces.

The invention relates to an application of CD166 used as a liver cancer diagnosis serum marker and a kit thereof. It is firstly confirmed that CD166 can be used as a marker for liver cancer diagnosis. Thus, liver cancer disease can be diagnosed and predicted by detecting concentration of CD166 in serum. Sampling is convenient, and detection is easy. In addition, the invention has advantages of specificity, high sensitivity and the like. As CD166 is cell surface molecule, CD166 can be used for diagnosing liver cancer and is expected to become a molecular target for treating liver cancer.

The invention discloses a circRNA marker for liver cancer diagnosis. The circRNA marker is circ-104075. Experiments prove that circRNA-104075 highly expresses in serum of liver cancer patients, expression of the circRNA-104075 is positively adjusted by HNF4a in liver cancer cells, the circRNA-104075 stimulates YAP expression through adsorbing mir-582-3p, the level of the circ-104075 in the liver cancer patients is higher than normal individuals and other disease patients, and the circ-104075 is high in specificity expression in liver cancer. AUC-ROC analysis proves that the serum circ-104075 is higher in diagnosis efficiency when being compared with other non-coded RNA markers, so that circ-104075 can serve as a novel liver cancer diagnosis marker.

The invention provides a cell separation apparatus. The cell separation apparatus comprises a stirring cavity, a connecting apparatus and a separation cavity, wherein the stirring cavity is connectedwith the separation cavity through the connecting apparatus, the connecting apparatus comprises a connecting pipe and a channel valve clamped on the connecting pipe, two ends of the connecting pipe extend into the stirring cavity and the separation cavity respectively, the channel valve comprises a rotating shaft perpendicular to the connecting pipe, a through hole is formed in the middle of the rotating shaft, the through hole is matched with a pipeline of the connecting pipe, and a rotating handle is arranged at the end of the rotating shaft. The beneficial effects are as follows: the adipose-derived stem cell separation apparatus provided by the invention has the advantages of good separation effect, convenience in sampling, thorough solid-liquid separation and difficulty in bacterium generation. Therefore, the cell separation apparatus effectively overcomes various defects in the prior art and has high industrial utilization value.

The invention discloses a device for root-leave undamaged separation culture of ocean-land submerged plants, comprising an upper cavity for culturing plant leaves and terrestrial stems and a lower cavity which is arranged below the upper cavity and used for culturing underground stems and roots. The upper cavity and the lower cavity are separated through a bottom plate on which a plurality of separation holes for the penetration of plants are arranged; the upper cavity is in an upward opening structure; and the lower cavity is in a closed structure. The device can realize that water layers of the upper cavity and the lower cavity are not leaked under the condition of maintaining the healthy survival of submerged plants, and has good simulation effect, convenient use, simple and easy dismounting and repeated use. The invention further provides a culture method of the device for root-leave undamaged separation culture of ocean-land submerged plants.

The invention belongs to the technical field of geological prospecting, in particular to a different-depth soil sampling device for geological exploration. The device comprises a base, a first motor,a second motor, a collector, a third motor and a supporting column. The collector can enter soil with different depths under the action of thread feeding transmission, soil at different depths can beconveniently sampled, manpower is saved, manpower is saved due to mechanical driving feeding and the work efficiency is improved; meanwhile, the collector can be started for collection after reachingthe depth required by the soil, collected soil samples are prevented from being confused with unnecessary soil at other depths, and sampling accuracy is guaranteed. When the soil samples enter the sampler, the soil samples at different depths around the sampler enter different partition plate cavities under the partition effect of the partition plates, the soil samples are partitioned and change of the soil samples at different depths can be observed conveniently.

The invention belongs to the technical field of animal cell culturing, and particularly relates to a method of forming a skeletal muscle cell by induction differentiation by utilization of a pig dedifferentiated adipocyte. A mature adipocyte of pig subcutaneous adipose tissues is separated by a collagenase digestion method, and is dedifferentiated to form the dedifferentiated adipocyte (DFAT cell). The DFAT cell has functions similar to that of mesenchymal stem cells (MSCs) and can be efficiently multiplicated in vitro and can introduce multi-directional differentiation. In addition, by utilization of induction of the galectin-1 protein in vitro, the pig DFAT cell is dedifferentiated to form a multinucleate cell capable of expressing a skeletal muscle cell specific marker molecule.

The invention provides a continuous sealed type interference-free sampling drilling tool of a soil repairing and sampling integrated drilling machine. The continuous sealed type interference-free sampling drilling tool comprises an outer pipe of a sampling pipe; a matched top driving cap is arranged at the top end of the outer pipe of the sampling pipe and is used for sealing the top part of the outer pipe of the sampling pipe; the bottom end of the outer pipe of the sampling pipe is connected with a coring drill bit and the coring drill bit stretches into a soil layer to sample; a soil coringpipe is arranged in a pipe body of the outer pipe of the sampling pipe; the lower end of the soil coring pipe is communicated with the coring drill bit and is used for collecting a soil sample in a sealed manner; the upper end of the soil coring pipe is connected with one end of a core sample pipe top driving head and the core sample pipe top driving head is used for jacking the soil coring pipe;the other end of the core sample pipe top driving head is connected with one end of a vibration absorber; the other end of the vibration absorber abuts against the top driving cap. According to the continuous sealed type interference-free sampling drilling tool of the soil repairing and sampling integrated drilling machine, original physicochemical properties of the soil layer are not damaged bythe structure and an inspection effect is reliable; the sampling is convenient and rapid and a target soil sample directly enters the soil coring pipe; the continuous sealed type interference-free sampling drilling tool has the advantages of convenience and rapidness in packaging, higher efficiency and deeper sampling depth.

The biopsy sampler comprises an outer sleeve girdling mechanism, a sampling mechanism and an inner insertion puncture mechanism, the outer sleeve girdling mechanism comprises an outer sleeve clamping head and an outer sleeve girdling pipe, the outer sleeve girdling pipe is arranged at the insertion end of the outer sleeve clamping head, and the sampling mechanism comprises a sampling clamping head and a sampling pipe. The sampling pipe is arranged at the inserting end of the sampling clamping connector, the other end of the sampling clamping connector is provided with a negative pressure mechanism connecting block, the sampling pipe is inserted into the outer sleeve girdling pipe, the sampling end of the sampling pipe is of a spiral structure, the inner inserting puncture mechanism comprises a puncture clamping connector and a puncture rod, and the puncture clamping connector is connected with the outer sleeve clamping connector in a clamped mode. The puncture rod is arranged at the insertion end of the puncture clamping head, the puncture rod is inserted into the sampling pipe, and after puncture is completed and the puncture rod is taken down, the sampling clamping head is connected with an air suction pipe of the negative pressure adsorption mechanism through the negative pressure mechanism connecting block. The problems that when an existing biopsy sampler is used for sampling a bone tumor part, sampling is inconvenient, and samples cannot be taken out completely are solved.

The invention discloses a sediment sampling device for a water conservancy project, relates to the field of water conservancy projects, and provides the following scheme aiming at the problem that a large number of microorganisms are accumulated in sediment at the bottom of an existing irrigation ditch of the water conservancy project in the using process, and water conservancy irrigation is affected. The device comprises a first transverse rod and second transverse rods. The two symmetrically-distributed second transverse rods are slidably mounted in the first transverse rod in the length direction of the first transverse rod, the ends, away from each other, of the two second transverse rods extend to the outer portion of the first transverse rod, and an adjusting mechanism is arranged between the first transverse rod and the two second transverse rods; the front faces of the first transverse rod and the second transverse rods are each provided with a movable rail in the length direction of the first transverse rod and the second transverse rods. The sediment sampling device can improve sediment sampling operation in a traditional water conservancy project irrigation ditch, reduces sampling danger, can sample sediment in different areas and different depths in the water conservancy project irrigation ditch, improves sediment sampling efficiency of the bottom of the water conservancy project irrigation ditch, and is suitable for popularization and application.

The invention discloses a boiler porous pulverized coal sampling gun and a design method thereof. A sampling hole is formed in the sampling gun, a conical plug is arranged at the gun head of the sampling gun, and a positioning pointer is arranged on the outer wall of the sampling gun; a sampled pulverized coal pushing device is arranged in the sampling gun; and a pulverized coal leakage preventiondevice is arranged in the sampling hole. Through the implementation of the sampling gun, the problems that the existing single-hole pulverized coal sampling time is long and a rotary sampling systemis complex can be effectively solved. Through a porous pulverized coal sampling pipe, pulverized coal sampling can be performed representatively. The porous pulverized coal sampling pipe is simple andpractical. Pulverized coal sampling operation is simple, sampling is convenient, the sampling position does not need to be calibrated in advance, and pulverized coal sampling representativeness is high. A baffle plate is arranged at the sampling hole of the porous pulverized coal sampling gun, so that pulverized coal in the pipeline can enter the sampling gun by pushing the baffle plate through forward wind pressure. Through the arrangement of a spring, the collected pulverized coal is prevented from reversely flowing out of the sampling gun, and the effect of maintaining the sampling resultis achieved.

The invention discloses an expanded-base pile expanded-base pile tip cement soil sampling device which comprises an expanded blade, an upper soil sampling box and a lower soil sampling box. One end of the expanded blade is hinged onto a drill rod, the upper soil sampling box is fixed on the expanded blade, the lower soil sampling box is fixed on the drill rod, one end of each of the upper soil sampling box and the lower soil sampling box is open, the upper soil sampling box and the lower soil sampling box are covered to form a closed soil sampling box when the expanded blade is folded, and a cement soil sample outlet is formed in the lower end face of the lower soil sampling box and provided with a plugging bolt. A sampling method of the device includes the steps: controlling folding and expanding of the expanded blade by a hydraulic system, and expanding a base of a pile tip and stirring cement soil at the expanded base by the aid of the expanded blade; sampling pile tip cement soil samples by matching and meshing the upper soil sampling box and the lower soil sampling box when the expanded blade is folded. The device realizes sampling of flexible expanded-base pile expanded-base cement soil, and has the advantages of simplicity in operation and reliable sampling quality.

The invention discloses a road and bridge strength detection device, and belongs to the technical field of road and bridge detection. The invention provides a road and bridge strength detection device which comprises a movable seat, a plurality of grooves are annularly formed in the upper end of the outer wall of a storage barrel at equal intervals, two compression springs A are fixedly arranged on the inner walls of the grooves in a symmetrical structure, a clamping plate is fixedly arranged between the outer side ends of the two compression springs A, and a connecting cover is arranged on the storage barrel. An annular groove is formed in the position, opposite to the clamping plate, of the annular inner wall of the connecting cover, a metal hose is connected in the middle of the top surface of the connecting cover, a shell is arranged on the rear side of the storage barrel, a top block is fixedly arranged at the upper end of the front wall of the shell, a hydraulic rod is fixedly arranged between the bottom surface of the top block and the top surface of the movable seat, a connecting pipe is coaxially and fixedly arranged on the top surface of the shell, and a limiting soft disc is coaxially and fixedly arranged at the lower end of the shell; a sampling assembly is arranged in the shell. According to the device, excessive damage to the road surface caused by excessive grinding force is avoided, the traffic safety of the road section is guaranteed while sampling is facilitated, and the practicability is high.

The invention belongs to the technical field of fumigation, and particularly relates to a fumigant compounding device used for preparing compounded fumigant. The fumigant compounding device provided by the invention is characterized in that an air inlet is formed at the top part of a steel bottle in the shape of a long column; an air-inlet valve is mounted at the air inlet; a vacuum meter and a manometer are mounted in drill-holes on two sides of the air-inlet valve respectively; needle valves are arranged on pipelines through which the vacuum meter head of the vacuum meter and the manometer head of the manometer are connected with the steel bottle; needle valves are mounted in drill-holes at the upper, the middle and the lower parts of the bottle body of the steel bottle; and the air outlets of the needle valves in the three positions on the bottle body of the steel bottle are taken as sampling ports for compounding fumigant. When being used for experimental research, the fumigant compounding device provided by the invention can ensure the convenience of sample despite of larger pressure, and is timesaving and safe.

The invention discloses a 24-hour urine collector, which is used for collecting urine of a patient needing inspection of whole-day urine after being mixed. The 24-hour urine collector comprises a bucket body and a bucket cover, wherein the bucket body is provided with a patient information card inserting groove and urine scale marks, a temperature monitor is arranged in the bucket body, a urine discharge pipe is arranged on the lower portion of the bucket body, a manual valve is arranged on the discharge pipe, a holding handle is arranged on the upper portion of the bucket body, a flow guide nozzle is arranged at an end opening of the upper end of the bucket body, and the upper end face of the bucket cover is provided with a timer, a timer starting button, an alarm button and a urine flowguide pipe penetrating through the upper cover. The 24-hour urine collector has the positive effects that the urine sample reserving time period, the urine volume and the temperature parameter of a patient can be accurately controlled through the bucket body with a large volume, the timer, the scale marks on the bucket wall and the temperature detector. The flow guide pipe on the bucket cover, thebucket body discharge pipe and the flow guide nozzle are convenient for the patient to drain urine to the collector and clean out the urine. The detection accuracy is improved, and urine sample reserving and sampling are convenient and sanitary.

The invention discloses a liquid metal sampler which comprises an outer pipe, an inner pipe, a lifting rod, a concave gland and a sealing head. The outer pipe sleeves outside the inner pipe; vent holes are arranged in the side wall of the outer pipe and the side wall of the inner pipe; a gap is reserved between the inner pipe and the outer pipe; the concave gland is located at the upper end of theouter pipe, a through hole is formed in the center of the top of the gland, the lower end of the lifting rod penetrates through the through hole, the lower end of the lifting rod is connected with the upper portion of the inner pipe, the sealing head is arranged at the bottom of the outer pipe, and a plurality of liquid inlet holes are formed between the sealing head and the outer pipe. The innerpipe is driven by the lifting rod to move up and down in the outer pipe, and the inner pipe can make close contact with the sealing head when moving downwards. The liquid metal sampler solves the problem of interference of impurities on the free surface of the liquid metal on the sample, ensures the accuracy of the sampling process and has the characteristics of simple and convenient operation.

The invention discloses a needleless sampling catheter. The needleless sampling catheter includes a main urinary catheter, a branch urinary catheter and a sampling tube; the branch urinary catheter and the sampling tube communicate with the main urinary catheter; a urinary hole is formed in the main urinary catheter; the needleless sampling catheter also includes a supporting structure, a urinarycollection container, a lifting structure and an opening-closing structure; the supporting structure includes a support platform, a support column, a support rod, a first connection rod, a second connection rod and a third connection rod; the lifting structure includes a first electromagnet, a first iron block and a first button switch; and the opening-closing structure includes a fourth connection rod, a fifth connection rod, a second electromagnet, a second iron block, and a second button switch. The needleless sampling catheter can facilitate sampling and improve the accuracy of the detection result; when urine in the sampling tube is updated, only the button switch is pressed so as to prevent medical personnel from contacting the patient's urine or prevent urine spilling; and the needleless sampling catheter is easy to operate, and is safe and clean.

The invention relates to an in-vitro detection reagent for clinical diagnosis, and in particular to a preparation method of a para hydroxybenzene alanine urine detection reagent. The para hydroxybenzene alanine urine detection reagent provided by the invention contains silver ions, iodide ions, nitrate ions, platinum ions and azo bis-isobutyric amidine hydrochloride, and is prepared from mixing the components according to the proportion. The para hydroxybenzene alanine urine detection reagent provided by the invention is easy to sample and simple to operate, can be used for general survey of large-scale tumor metabolic disturbance and the like, is high in spectrum property and high in stability and sensitivity, has the ability of displaying specific color and a white precipitation phenomenon, has a better recognition effect, and is fast in detection speed.

The invention discloses a microorganism incubator convenient for internal environment adjustment. The microorganism incubator comprises a box body and a control panel. A bearing plate is fixedly mounted in the box body, the upper portion of a first heat conducting plate is connected with a second heat conducting plate, and a culture dish is placed on the inner side of a containing tank, the left end of a catheter is in threaded connection with a sealing cover, a connector is arranged over the culture dish, and the lower end of a circuit board is connected with a second storage battery througha third electric wire. A glass plate is arranged on the inner side of an ultraviolet sterilization lamp, the right end of a humidifying pipe is fixedly connected with a booster pump, a temperature sensor and a humidity sensor are fixedly mounted on the inner surface of the right side of the box body, and the control panel is fixedly mounted on the front side of a central processor. According to the microorganism incubator convenient for internal environment adjustment, the influence of time errors on a test result can be reduced, microbial growth environment adjustment is convenient, samplingis convenient, and the microorganism incubator can be sterilized and disinfected conveniently.

The invention discloses a soil chemical component detecting and sampling system. The system comprises a pressure module, a lifting module, a driving module and the ground. Through cooperation of the pressure module and the lifting module, the system is driven to move in the vertical height in a hydraulic mode, so that the perpendicularity error of downward screwing of the screwing-in barrel is reduced, through arrangement of the driving module, water is injected into the screwing-in barrel through an opening of the injection plate, and soil near the screwing-in barrel can be wetted at the moment, therefore, the effect of softening the soil is achieved, and the soil can be sampled more conveniently.

The invention discloses a health state identification method based on exhaled gas marker detection in the technical field of health state identification methods, and the method comprises the steps: carrying out the communication with a measuring instrument, obtaining a measurement sample factor, carrying out the standardization processing of the measurement sample factor, combining historical data, performing training by adopting a depth adjustment algorithm of a random forest decision tree to obtain an optimal algorithm model of the characteristic factors and the disease degrees, judging whether the algorithm model training effect reaches a set threshold value or not by adopting the optimal algorithm model, if so, quickly predicting the measurement sample in real time, and if not, carrying out model training again, and outputting results after measurement sample prediction. According to the method, the health state of the human body is identified, the limitations of invasiveness, injury, inapplicability to early diagnosis and the like of a traditional chronic obstructive pulmonary disease diagnosis method are overcome, the method can be used for early screening of COPD, diseases can be found as soon as possible, the COPD death rate is effectively reduced, and the method has important application value and wide application prospects.