摘要
建立特香型四特年份白酒的气相色谱检测方法,并对气相指纹图谱的实验方法学进行考察。经过预试验得出气相色谱最佳检测条件为:载气(氮气)流速1.5 mL/min,分流比30∶1。方法学考察结果表明,在精密度、重现性以及稳定性试验中,各色谱峰相对保留时间的相对标准偏差(RSD)均<0.03%,各相对峰面积的RSD均<3.0%。该检测方法精密度较高、重现性好、稳定可行,能满足气相色谱指纹图谱分析的技术要求。
A gas chromatographic method was established for the determination of Sitir Te-flavor Baijiu(Chinese liquor),and the experimental methodology of gas fingerprint was investigated.After pilot experiments,the optimal detection conditions for gas chromatography were determined as follows:carrier gas(nitrogen)flow rate 1.5 ml/min,and shunt ratio 30∶1.The experimental methodology showed that in the precision tests,method reproducibility tests and sample stability tests,the relative standard deviation(RSD)of each chromatographic peak was less than 0.03%,and the RSD of each relative peak area was less than 3.0%.The experimental results showed that the method had high precision,with good reproducibility,stability and feasibility,which could meet the technical requirements of gas chromatographic fingerprint analysis.
作者
杨莹
吴生文
林培
徐柏田
熊秋萍
YANG Ying;WU Shengwen;LIN Pei;XU Baitian;XIONG Qiuping(Sitir Liquor Co.,Ltd.,Zhangshu 331200,China)
出处
《中国酿造》
CAS
北大核心
2020年第12期176-180,共5页
China Brewing
关键词
年份白酒
气相色谱指纹图谱
方法学
aged Baijiu
fingerprint of gas chromatography
methodology