Measuring device for improving measuring accuracy of reducing sugar and equipment thereof

Abstract

The utility model provides a measuring device and equipment for improving reducing sugar measuring accuracy, the measuring device comprises a titration fixing assembly, a burette, a measuring bottle and an electric heating furnace, the titration fixing assembly is used for fixing one end of the burette, the other end of the burette is arranged in the measuring bottle, and the measuring bottle is arranged at the heating end of the electric heating furnace. The measuring device further comprises an adjusting assembly and an inert gas source assembly. A titration through hole and an embedding groove which are communicated with each other are formed in the burette; the adjusting assembly comprises an adjusting piston piece and an extended adjusting handle, the adjusting piston piece is embedded in the embedding groove, a liquid passing through hole is formed in the adjusting piston piece, the adjusting piston piece is connected with one end of the extended adjusting handle, the adjusting piston piece is rotationally connected with the burette, and the liquid passing through hole is movably communicated with the titration through hole. A bottle plug plugging block is arranged at an opening of the measuring bottle, a limiting through opening, an air inlet and an air outlet are formed in the bottle plug plugging block, and the other end of the burette is arranged in the limiting through opening and extends into the measuring bottle. The gas outlet end of the inert gas source assembly is communicated with the gas inlet.

Description

Technical Field

[0001] The present disclosure relates to the field of reducing sugar determination, and in particular to a determination device and equipment thereof for improving the accuracy of reducing sugar determination. Background Art

[0002] Reducing sugar refers to sugars with reducing properties. Glucose molecules contain free aldehyde groups, fructose molecules contain free ketone groups, and lactose and maltose molecules contain free hemiacetal hydroxyl groups, so they all have reducing properties and are reducing sugars. Other non-reducing sugars, such as disaccharides, trisaccharides, polysaccharides, etc. (common sucrose, dextrin starch, etc. belong to this category), do not have reducing properties themselves, but can be hydrolyzed into reducing monosaccharides, which are then measured and converted into the content of the corresponding sugars in the sample. Therefore, the determination of sugars is based on the determination of reducing sugars.

[0003] In daily food testing, reducing sugar is a routine physical and chemical inspection item, involving a wide range of sample types, such as dairy products, meat products, fermented wines, and fruit and vegetable products and leaves. At present, the detection of reducing sugars is divided into two categories. One is the specific detection of the content of a reducing sugar, such as glucose, fructose, and galactose; the other is the determination of the total amount of reducing sugars. The chemical titration method is currently the most widely used method for the total amount of reducing sugars. For example, the most commonly used method in food testing is the first method in the national standard GB / T5009.7-2008: direct titration. The main steps of this method are as follows: Under heating conditions, using methylene blue as an indicator, the calibrated Fehling's reagent is directly titrated with the sample solution from which the protein has been removed. The reducing sugar in the sample reacts with the potassium sodium copper tartrate complex in Fehling's reagent to form a red cuprous oxide precipitate, and the cuprous oxide then reacts with potassium ferrocyanide in the reagent to form a soluble compound. When the end point is reached, the slightly excess reducing sugar immediately reduces the methylene blue,

[0004] The end point is when the blue color fades and the original sample solution color is revealed. Calculate the amount of reducing sugar based on the sample consumption volume.

[0005] However, the three major sections of the determination method, namely, the calibration of the reagent (alkaline copper tartrate solution), the prediction of the sample solution, and the determination of the sample solution, all need to be performed under boiling conditions, that is, the experimenter controls the burette to perform the titration operation in the electric furnace. The reason is that the reaction rate of reducing sugar and cuprous ions is accelerated; the second is that the color change reaction of methylene blue is reversible, and the reduced methylene blue will be oxidized to the oxidized form when it encounters oxygen in the air. In addition, cuprous oxide is also extremely unstable and easily oxidized by oxygen in the air. Keeping the reaction solution boiling can prevent air from entering, and avoid the oxidation of methylene blue and cuprous oxide to increase consumption. The conical flask cannot be shaken at will during titration, and the conical flask cannot be removed from the heat source for titration to prevent air from entering the reaction solution. However, when the piston of the burette is manually adjusted during heating in the electric furnace, it is easy for the experimenter to be scalded, resulting in low safety of the experiment.

[0006] Therefore, how to improve the accuracy of reducing sugar determination results while improving the safety of the determination experiment is an urgent problem that needs to be solved. Utility Model Content

[0007] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a reducing sugar determination device and equipment that can improve the accuracy of reducing sugar determination results while improving the safety of the determination experiment.

[0008] The purpose of this disclosure is achieved through the following technical solutions:

[0009] A measuring device for improving the accuracy of reducing sugar measurement, comprising a titration fixing assembly, a burette, a measuring bottle and an electric heating furnace, wherein the titration fixing assembly is used to fix one end of the burette, the other end of the burette is arranged in the measuring bottle, and the measuring bottle is arranged at the heating end of the electric heating furnace;

[0010] The measuring device also includes a regulating component and an inert gas source component;

[0011] The burette is formed with a titration through hole and an embedding groove which are interconnected;

[0012] The adjusting assembly comprises an adjusting piston and an extended adjusting handle, wherein the adjusting piston is embedded in the embedding groove, the adjusting piston is provided with a liquid flow hole, the adjusting piston is connected to one end of the extended adjusting handle, the adjusting piston is rotatably connected to the burette, and the liquid flow hole is movably connected to the titration through hole;

[0013] A bottle plug is provided at the opening of the measuring bottle, and the bottle plug forms a limited opening, an air inlet and an exhaust port. The other end of the burette is arranged in the limited opening and extends into the measuring bottle.

[0014] The gas outlet end of the inert gas source component is communicated with the gas inlet.

[0015] In one embodiment, the extended adjustment handle includes an extension portion and an adjustment grip portion, one end of the extension portion is connected to the adjustment piston member, and the other end of the extension portion is provided with a mounting groove, and the adjustment grip portion is installed in the mounting groove.

[0016] In one embodiment, the titration fixing assembly includes a titration support and a titration clamp, wherein the titration clamp is disposed on the titration support, and the titration clamp is used to fix one end of the burette.

[0017] In one embodiment, the inert gas source assembly includes an inert gas source tank and a vent pipe, the gas outlet end of the inert gas source tank is connected to one end of the vent pipe, and the other end of the vent pipe is connected to the gas inlet.

[0018] In one embodiment, the inert gas source assembly further includes a placement rack, the placement rack is provided with a hollow cavity, a fixed mounting plate is provided on the inner side wall of the hollow cavity, the fixed mounting plate is provided with a limiting slot, and the inert gas source storage tank is movably connected to the limiting slot so that the inert gas source storage tank is movably connected to the fixed mounting plate.

[0019] In one embodiment, there are multiple inert gas source storage tanks and multiple limit slots.

[0020] In one embodiment, the ventilation pipe is a stainless steel metal hose.

[0021] In one embodiment, the measuring bottle is a conical flask.

[0022] In one embodiment, the adjusting piston and the extended adjusting handle are an integrally formed structure.

[0023] A measuring device for improving the measuring accuracy of reducing sugar comprises the measuring device for improving the measuring accuracy of reducing sugar described in any one of the above embodiments.

[0024] Compared with the prior art, the present invention has at least the following advantages:

[0025] 1. The stopper is set at the opening of the measuring bottle, which can prevent oxygen from entering the measuring bottle during the measurement process, avoiding premature oxidation of methylene blue and cuprous oxide in the measuring bottle, improving the accuracy of the sample titration, and thus effectively improving the accuracy of the reducing sugar determination result of the measuring device.

[0026] 2. An air inlet and an air outlet are provided through the bottle plugging block, and the inert gas is continuously output through the inert gas source component to be input into the measuring bottle through the air inlet, thereby increasing the pressure in the measuring bottle and placing the measuring bottle in a positive pressure state. At the same time, the inert gas can be introduced to discharge the air in the measuring bottle through the air outlet, effectively preventing excessive oxygen from entering the measuring bottle to oxidize methylene blue and cuprous oxide, thereby effectively improving the accuracy of the reducing sugar determination result of the measuring device.

[0027] 3. Since the inert gas source component continuously outputs inert gas to the measuring bottle, the measuring bottle has a good oxygen isolation effect, so the heating temperature of the electric heating furnace can be reduced. At the same time, the piston rotation can be adjusted by extending the adjustment handle to control the connection between the liquid flow hole and the titration through hole. That is, while reducing the heating temperature of the electric heating furnace, the experimenter can control the sample liquid drop switch in the burette by extending the adjustment handle. This can reduce the risk of the experimenter being scalded during the titration process, thereby effectively improving the safety of the measurement device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of a measuring device for improving the measuring accuracy of reducing sugar in one embodiment;

[0030] Figure 2 for Figure 1 A schematic diagram of a local structure when the titration through hole and the liquid flow hole are not connected in a measuring device for improving the accuracy of reducing sugar measurement;

[0031] Figure 3 for Figure 1 A schematic diagram of a local structure when a titration through hole is connected to a liquid flow hole in a measuring device for improving the accuracy of reducing sugar measurement;

[0032] Figure 4 for Figure 1 A schematic diagram of the structure of a burette in a measuring device for improving the accuracy of reducing sugar measurement is shown;

[0033] Figure 5 for Figure 1 A schematic diagram of the structure of the regulating component in the measuring device for improving the accuracy of reducing sugar measurement is shown;

[0034] Figure 6 for Figure 1A schematic diagram of the structure of a measuring bottle in a measuring device for improving the accuracy of reducing sugar measurement is shown;

[0035] Figure 7 for Figure 1 A schematic diagram of the partial structure of the inert gas source component in a measuring device for improving the accuracy of reducing sugar measurement is shown. DETAILED DESCRIPTION

[0036] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0037] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0039] The present disclosure provides a measuring device for improving the accuracy of reducing sugar measurement, which includes a titration fixing assembly, a burette, a measuring bottle and an electric heating furnace. The titration fixing assembly is used to fix one end of the burette, and the other end of the burette is arranged in the measuring bottle, and the measuring bottle is arranged at the heating end of the electric heating furnace. The measuring device also includes an adjustment assembly and an inert gas source assembly. The burette is formed with interconnected titration through holes and embedding grooves. The adjustment assembly includes an adjustment piston member and an extended adjustment handle. The adjustment piston member is embedded in the embedding groove. The adjustment piston member is provided with a liquid flow hole. The adjustment piston member is connected to one end of the extended adjustment handle. The adjustment piston member is rotatably connected to the burette, and the liquid flow hole is movably connected to the titration through hole. A bottle plug is provided at the opening of the measuring bottle. 瓶 The plugging block forms a limited opening, an air inlet and an air outlet, and the other end of the burette is arranged in the limited opening and extends into the measuring bottle. The air outlet end of the inert gas source component is connected with the air inlet.

[0040] See also Figures 1 to 6In order to better understand the measuring device 10 for improving the measuring accuracy of reducing sugar disclosed in the present invention, the measuring device 10 for improving the measuring accuracy of reducing sugar is further explained below:

[0041] The measuring device 10 for improving the accuracy of reducing sugar measurement in one embodiment includes a titration fixing assembly 100, a burette 200, a measuring bottle 300 and an electric heating furnace 400. The titration fixing assembly 100 is used to fix one end of the burette 200, the other end of the burette 200 is arranged in the measuring bottle 300, and the measuring bottle 300 is arranged at the heating end of the electric heating furnace 400. The measuring device 10 also includes an adjustment assembly 500 and an inert gas source assembly 600. The burette 200 is formed with a titration through hole 202 and an embedding groove 204 that are connected. The adjustment assembly 500 includes an adjustment piston 510 and an extended adjustment handle 520. The adjustment piston 510 is embedded in the embedding groove 204. The adjustment piston 510 is provided with a liquid flow hole 5102. The adjustment piston 510 is connected to one end of the extended adjustment handle 520. The adjustment piston 510 is rotatably connected to the burette 200. The liquid flow hole 5102 is movably connected to the titration through hole 202. A bottle plug block 310 is provided at the opening of the measuring bottle 300. The bottle plug block 310 forms a limited position opening 3102, an air inlet 3104 and an exhaust port 3106. The other end of the burette 200 is arranged in the limited position opening 3102 and extends into the measuring bottle 300. The gas outlet end of the inert gas source assembly 600 is connected to the air inlet 3104.

[0042] In this embodiment, the stopper block 310 is set at the opening of the measuring bottle 300, which can block oxygen from entering the measuring bottle 300 during the measurement process, thereby avoiding premature oxidation of methylene blue and cuprous oxide in the measuring bottle 300, improving the accuracy of the sample titration, and thus effectively improving the accuracy of the reducing sugar measurement results of the measuring device 10.

[0043] Furthermore, an air inlet 3104 and an air outlet 3106 are provided through the bottle plug block 310, and the inert gas is continuously output through the air inlet 3104 and input into the measuring bottle 300 through the inert gas source assembly 600, thereby increasing the pressure in the measuring bottle 300 and placing the measuring bottle 300 in a positive pressure state. At the same time, the inert gas introduced can discharge the air in the measuring bottle 300 through the air outlet 3106, thereby effectively preventing excessive oxygen from entering the measuring bottle 300 to oxidize the methylene blue and cuprous oxide, thereby effectively improving the accuracy of the reducing sugar determination result of the measuring device 10.

[0044] Furthermore, since the inert gas source assembly 600 continuously outputs inert gas to the measuring bottle 300, the measuring bottle 300 has a better oxygen isolation effect, so the heating temperature of the electric heating furnace 400 can be reduced. At the same time, the rotation of the piston 510 is adjusted by extending the adjustment handle 520 to control the connection between the liquid flow hole 5102 and the titration through hole 202. That is, while reducing the heating temperature of the electric heating furnace 400, the experimenter can control the sample liquid dripping switch in the burette 200 by extending the adjustment handle 520. This can reduce the risk of the experimenter being scalded during the titration process, thereby effectively improving the safety of the measuring device 10.

[0045] It should be noted that the sample solution to be tested is dropped into the measuring bottle 300 through the burette 200 and reacts with the Fehling's reagent in the measuring bottle 300 .

[0046] like Figure 5 As shown, in one embodiment, the extended adjustment handle 520 includes an extension portion 5210 and an adjustment grip portion 5220, one end of the extension portion 5210 is connected to the adjustment piston member 510, and the other end of the extension portion 5210 is provided with a mounting slot 5212, and the adjustment grip portion 5220 is mounted in the mounting slot 5212. It can be understood that the extension portion 5210 is an extension rod, and the setting of the extension portion 5210 enables the experimenter to rotate and adjust the adjustment piston member 510 by adjusting the grip portion 5220 at the far end of the electric heating furnace 400, thereby reducing the risk of the experimenter being scalded and effectively improving the safety of the measuring device 10.

[0047] It should be noted that, combined with Figure 2 and Figure 3 It can be known that by rotating the adjusting gripping portion 5220, the extending portion 5210 and the adjusting piston 510 are driven to rotate, so that the liquid through hole and the titration through hole 202 are movably connected, thereby controlling the titration switch of the sample liquid.

[0048] like Figure 1 As shown, in one embodiment, the titration fixing assembly 100 includes a titration support 110 and a titration clamp 120, and the titration clamp 120 is arranged on the titration support 110, and the titration clamp 120 is used to fix one end of the burette 200. It should be noted that the titration clamp 120 is arranged on the titration support 110 and can be moved up and down to adjust the vertical height of the burette 200, and the burette 200 is fixed by movably clamping one end of the burette 200 through the titration clamp 120.

[0049] It should be noted that the titration bracket 110 and the titration clamp 120 belong to the prior art, as shown in patent publication number CN203695080U, which will not be described in detail here.

[0050] like Figure 1 As shown, in one embodiment, the inert gas source assembly 600 includes an inert gas source tank 610 and a vent pipe 620, the gas outlet end of the inert gas source tank 610 is connected to one end of the vent pipe 620, and the other end of the vent pipe 620 is connected to the gas inlet 3104. It can be understood that the vent pipe 620 and the inert gas source tank 610 are detachably connected between the pipe openings, that is, the inert gas source tank 610 can be replaced with a new one after use, ensuring that the measuring bottle 300 always maintains a positive pressure during the titration process, and has a better oxygen isolation effect.

[0051] It should be noted that, in this embodiment, the inert gas is nitrogen or helium.

[0052] like Figure 7 As shown, in one embodiment, the inert gas source assembly 600 further includes a placement rack 630, the placement rack 630 is provided with a hollow cavity 6302, a fixed mounting plate 640 is provided on the inner side wall of the hollow cavity 6302, the fixed mounting plate 640 is provided with a limited position slot 6402, and the inert gas source storage tank 610 is movably engaged in the limited position slot 6402, so that the inert gas source storage tank 610 is movably engaged with the fixed mounting plate 640. It can be understood that the inert gas source storage tank 610 can be well fixed by the placement rack 630 and the fixed plate.

[0053] like Figure 1 and Figure 7 As shown, in one embodiment, there are multiple inert gas source tanks 610 and multiple limit slots 6402. It is understandable that the arrangement of multiple limit slots 6402 and multiple inert gas source tanks 610 facilitates replacement of another inert gas source tank 610 after one of the inert gas source tanks 610 is used up.

[0054] like Figure 1 As shown, in one embodiment, the vent pipe 620 is a stainless steel metal hose. It can be understood that the stainless steel metal hose has good high temperature resistance.

[0055] like Figure 6 As shown, in one embodiment, the measuring bottle 300 is a conical bottle. It can be understood that the measuring bottle 300 is a transparent conical bottle, so as to facilitate observation of whether the reagent in the measuring bottle 300 fades.

[0056] like Figure 5 As shown, in one embodiment, the adjusting piston 510 and the extended adjusting handle 520 are integrally formed. It is understandable that the adjusting piston 510 and the extended adjusting handle 520 are integrally formed of glass fiber material and have good high temperature resistance.

[0057] The present disclosure also provides a measuring device for improving the accuracy of reducing sugar measurement, including the measuring device for improving the accuracy of reducing sugar measurement described in any of the above embodiments.

[0058] In this embodiment, a bottle stopper is provided at the opening of the measuring bottle, which can block oxygen from entering the measuring bottle during the measuring process, thereby avoiding premature oxidation of methylene blue and cuprous oxide in the measuring bottle, improving the accuracy of the sample titration, and thus effectively improving the accuracy of the reducing sugar measurement results of the measuring equipment.

[0059] Furthermore, an air inlet and an air exhaust port are opened through the bottle plugging block, and the inert gas is continuously output through the inert gas source component to be input into the measuring bottle through the air inlet, thereby increasing the pressure in the measuring bottle and placing the measuring bottle in a positive pressure state. At the same time, the inert gas can be introduced to discharge the air in the measuring bottle through the exhaust port, effectively preventing excessive oxygen from entering the measuring bottle to oxidize methylene blue and cuprous oxide, thereby effectively improving the accuracy of the reducing sugar determination result of the measuring equipment.

[0060] Furthermore, since the inert gas source assembly continuously outputs inert gas to the measuring bottle, the measuring bottle has a better oxygen isolation effect, so the heating temperature of the electric heating furnace can be reduced. At the same time, the rotation of the piston can be adjusted by extending the adjustment handle to control the connectivity between the liquid flow hole and the titration through hole. That is, while lowering the heating temperature of the electric heating furnace, the experimenter can control the sample liquid dripping switch in the burette by extending the adjustment handle. This can reduce the risk of the experimenter being scalded during the titration process, thereby effectively improving the safety of the measurement equipment.

[0061] Compared with the prior art, the present invention has at least the following advantages:

[0062] 1. The stopper is set at the opening of the measuring bottle, which can prevent oxygen from entering the measuring bottle during the measurement process, avoiding premature oxidation of methylene blue and cuprous oxide in the measuring bottle, improving the accuracy of the sample titration, and thus effectively improving the accuracy of the reducing sugar determination result of the measuring device.

[0063] 2. An air inlet and an air outlet are provided through the bottle plugging block, and the inert gas is continuously output through the inert gas source component to be input into the measuring bottle through the air inlet, thereby increasing the pressure in the measuring bottle and placing the measuring bottle in a positive pressure state. At the same time, the inert gas can be introduced to discharge the air in the measuring bottle through the air outlet, effectively preventing excessive oxygen from entering the measuring bottle to oxidize methylene blue and cuprous oxide, thereby effectively improving the accuracy of the reducing sugar determination result of the measuring device.

[0064] 3. Since the inert gas source component continuously outputs inert gas to the measuring bottle, the measuring bottle has a good oxygen isolation effect, so the heating temperature of the electric heating furnace can be reduced. At the same time, the piston rotation can be adjusted by extending the adjustment handle to control the connection between the liquid flow hole and the titration through hole. That is, while reducing the heating temperature of the electric heating furnace, the experimenter can control the sample liquid drop switch in the burette by extending the adjustment handle. This can reduce the risk of the experimenter being scalded during the titration process, thereby effectively improving the safety of the measurement device.

[0065] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A measuring device for improving the accuracy of reducing sugar measurement, comprising a titration fixing assembly, a burette, a measuring bottle and an electric heating furnace, wherein the titration fixing assembly is used to fix one end of the burette, the other end of the burette is arranged in the measuring bottle, and the measuring bottle is arranged on the heating end of the electric heating furnace, characterized in that: The measuring device also includes a regulating component and an inert gas source component; The burette is formed with a titration through hole and an embedding groove which are interconnected; The adjusting assembly comprises an adjusting piston and an extended adjusting handle, wherein the adjusting piston is embedded in the embedding groove, the adjusting piston is provided with a liquid flow hole, the adjusting piston is connected to one end of the extended adjusting handle, the adjusting piston is rotatably connected to the burette, and the liquid flow hole is movably connected to the titration through hole; A bottle plug is provided at the opening of the measuring bottle, and the bottle plug forms a limited opening, an air inlet and an exhaust port. The other end of the burette is arranged in the limited opening and extends into the measuring bottle. The gas outlet end of the inert gas source component is communicated with the gas inlet.

2. The measuring device for improving the measuring accuracy of reducing sugar according to claim 1, characterized in that: The extended adjustment handle comprises an extension portion and an adjustment grip portion, one end of the extension portion is connected to the adjustment piston member, the other end of the extension portion is provided with a mounting groove, and the adjustment grip portion is mounted in the mounting groove.

3. The measuring device for improving the measuring accuracy of reducing sugar according to claim 1, characterized in that: The titration fixing assembly comprises a titration support and a titration clamping piece, wherein the titration clamping piece is arranged on the titration support and is used to fix one end of the burette.

4. The measuring device for improving the measuring accuracy of reducing sugar according to claim 1, characterized in that: The inert gas source assembly comprises an inert gas source storage tank and a vent pipe, the gas outlet end of the inert gas source storage tank is communicated with one end of the vent pipe, and the other end of the vent pipe is communicated with the gas inlet.

5. The measuring device for improving the measuring accuracy of reducing sugar according to claim 4, characterized in that: The inert gas source assembly also includes a placement rack, which is provided with a hollow cavity, and a fixed mounting plate is provided on the inner side wall of the hollow cavity. The fixed mounting plate is provided with a limited slot, and the inert gas source storage tank is movably connected to the limited slot so that the inert gas source storage tank is movably connected to the fixed mounting plate.

6. The measuring device for improving the measuring accuracy of reducing sugar according to claim 5, characterized in that: There are multiple inert gas source storage tanks, and there are multiple limit slots.

7. The measuring device for improving the measuring accuracy of reducing sugar according to claim 4, characterized in that: The ventilation pipe is a stainless steel metal hose.

8. The measuring device for improving the measuring accuracy of reducing sugar according to claim 1, characterized in that: The measuring bottle is a conical bottle.

9. The measuring device for improving the measuring accuracy of reducing sugar according to claim 2, characterized in that: The regulating piston and the extended regulating handle are an integrally formed structure.

10. A measuring device for improving the accuracy of reducing sugar measurement, characterized in that: A measuring device for improving the measuring accuracy of reducing sugar comprising any one of claims 1-9.

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