5 results about "Alcohol substance" patented technology

The invention discloses a quantitative evaluation method for hops aroma of light wine, and belongs to the technical field of detection and evaluation. According to the technical scheme, the method comprises the following steps: quantitatively detecting terpene substances, terpene alcohol substances and terpene ester substances in the light wine liquid by utilizing a headspace solid-phase microextraction-gas chromatography-mass spectrometry technology to obtain the content of the terpene substances, the content of the terpene alcohol substances and the content of the terpene ester substances in the light wine liquid; calculating a floral aroma evaluation index by utilizing the flavor threshold value of the terpene substances, the flavor threshold value of the terpene alcohol substances, the flavor threshold value of the terpene ester substances, the content of the terpene substances in the light wine, the content of the terpene alcohol substances and the content of the terpene ester substances, and further quantitatively evaluating the floral aroma intensity in the light wine. The method disclosed by the invention is applied to quantitative evaluation of the hops aroma of the light wine, solves the problem that the evaluation result of the hops aroma evaluation of the existing beer is inaccurate, and can objectively quantify the hops aroma intensity of the wine.

The utility model provides an alcohol substance storage tank, which relates to the technical field of storage tanks and comprises a shell and a guardrail module, a polyurea coating, a filling port and a liquid level display module are arranged on the shell, the liquid level display module comprises a sleeve, a floating ball and a window, and the guardrail module is provided with at least one flat surface, so that the shell can be stably placed. The guardrail module comprises at least two groups of sub-modules, the sub-modules are connected through connecting pieces to form the guardrail module, and the guardrail module is used for being installed on the shell to achieve the anti-rolling effect. The outer surface of the shell is provided with the polyurea coating, and the polyurea coating has the functions of insulating heat, enhancing the material strength and preventing explosion, so that the transportation safety is improved; a liquid level display module is arranged, so that the internal filling condition is more visual; the guardrail module is installed on the shell, so that the rolling prevention effect is achieved, the storage tank is changed into a square shape from a round shape, and effective isolation is achieved in the stacking and carrying processes.

The present application belongs to the field of gas detection, and relates to a combined detection tube for detecting alcohol concentration in blood. The detection tube is composed of a sample adding tube and a detection tube. The sample adding tube is internally provided with non-woven fabric, filler and stopper, which can effectively remove red blood cells and absorb moisture when the sample passes through, so that alcohol substances are gasified and diffused into the detection tube under the action of carbonates. The detection tube is further provided with a multi-layer structure including non-woven fabric, filler and different color indicating glue, so that after the oxidation-reduction reaction of alcohol substances and Cr(VI), the alcohol concentration can be directly reflected according to the color change (orange to blue) gradient, and qualitative and quantitative analysis in the range of 0.2-2.0 mg / mL can be realized. The whole detection process takes less than 8 minutes.

The invention discloses a method for detecting the content of dimethylamino acetaldehyde in a reaction solution. The method comprises the following steps: S1, preparing a system applicability solution, a dimethylamino acetaldehyde reaction solution, a test sample stock solution, an alcohol stock solution, a reference substance standard series solution and a test sample solution; s2, qualitatively detecting a system applicability solution by adopting a gas chromatographic method; and S3, detecting the blank control solution by adopting a gas chromatographic method, quantitatively detecting the content of alcohol substances in the reference substance standard series solution and the test solution, and calculating the content of dimethylamino acetaldehyde in the test solution according to a standard addition method. The background of the reference substance standard series solution is similar to the components of the test solution, and the content of alcohol substances in the reference substance standard series solution and the test solution is quantitatively detected by a gas chromatography standard addition method, so that the accuracy and reliability of a detection result are ensured; the method is high in specificity, simple and rapid to operate, accurate in result, efficient, high in precision and harmless to a chromatographic column and an instrument.

The invention provides an agilawood alcohol content detection method, electronic equipment, a storage medium and a program product, and relates to the technical field of computers. According to the method, nondestructive testing of an agilawood sample can be achieved through the nuclear magnetic resonance technology, a complex pretreatment process is not needed, the detection efficiency can be greatly improved, and by locking the optimal magnetic field intensity and the optimal radio frequency for exciting alcohol substance hydrogen nuclei and combining targeted collection and signal feature extraction of target mixed signals, the detection accuracy of the agilawood sample is improved. The specificity and the signal-to-noise ratio of alcohol signals are remarkably improved, interference of non-target components such as moisture, oil and lignin in an agilawood sample is effectively stripped, and the detection precision and repeatability are guaranteed.