CAJ | 학술논문

建立内标定量方式测定白酒中正丙醇含量的气相色谱检测方法。用醋酸正丁酯作内标物，抽取白酒10ml，移入2．00％的内标液0．2ml，混匀，其白酒样品中添加内标液的量为0．3587g／L。应用自动进样器进样，采用ZB-624柱分离样品中的正丙醇和乙醇，然后采用内标定量方式分析白酒中正丙醇含量。内标一气相色谱法分析白酒中正丙醇含量，正丙醇的加标回收率在94．47％～103．4％，相对标准偏差为3．16％，且重现性好。该法分析白酒中的正丙醇含量，能满足检测工作要求，适合于大批量白酒中正丙醇含量的测定。
건립내표정량방식측정백주중정병순함량적기상색보검측방법。용작산정정지작내표물，추취백주10ml，이입2．00％적내표액0．2ml，혼균，기백주양품중첨가내표액적량위0．3587g／L。응용자동진양기진양，채용ZB-624주분리양품중적정병순화을순，연후채용내표정량방식분석백주중정병순함량。내표일기상색보법분석백주중정병순함량，정병순적가표회수솔재94．47％～103．4％，상대표준편차위3．16％，차중현성호。해법분석백주중적정병순함량，능만족검측공작요구，괄합우대비량백주중정병순함량적측정。
A quantitative method was established for determination of n-propanol content in liquor by gas chroma- tography with internal standard substance. N-butyl acetate was used as an internal standard substance. 0.2 ml of 2.00 % of internal standard solution was shifted into 10 ml of liquor, mixed and gained the liquor sample with the quantity of 0. 358 7 g/L of the internal standard substance. The liquor sample in GC was injected by the automatic injector, sample of n-propanol was separated from ethanol by ZB-624 column, and then the n-propanol content in the liquor was determined by the internal standard substance and analyzed by gas chromatography with the internal standard substance. The recovery of n-propanol was from 94.47 % to 103.4 %, the relative standard deviation was 3.16 % , and the reproducibility was good. The method could determinate the content of n-propanol in liquor and meet the quantitative requirements, which was suitable for the determination of n-propanol content in large quanti- ties of liquor.