云南民族大学学报（自然科学版）
雲南民族大學學報（自然科學版）
운남민족대학학보（자연과학판）
Journal of Yunnan University of Nationalities (Natural Sciences Edition)
2015年
6期
468-471,475
,共5页
气相色谱法%毛细管柱%甲醇
氣相色譜法%毛細管柱%甲醇
기상색보법%모세관주%갑순
gas chromatography%capillary column%methanol
以白酒为原料，对甲醇测定条件进行优化，建立甲醇分析条件．实验结果表明：最佳色谱条件为即载气流速1.00 mL／min，柱温6℃／min，气化温度300℃，氢气流量28 mL／min，检测器温度300℃．线性方程为 y ＝66.209x ＋1.7125，r ＝0.9996，最小检出限为0.41mg／L，日内精密度2.07％，日间精密度2.40％，样品加标回收率为83.88％～94.53％．该方法适用于白酒中甲醇含量的测定，测得10个白酒样品中甲醇的含量4.18～66.97 mg／L 之间．
以白酒為原料，對甲醇測定條件進行優化，建立甲醇分析條件．實驗結果錶明：最佳色譜條件為即載氣流速1.00 mL／min，柱溫6℃／min，氣化溫度300℃，氫氣流量28 mL／min，檢測器溫度300℃．線性方程為 y ＝66.209x ＋1.7125，r ＝0.9996，最小檢齣限為0.41mg／L，日內精密度2.07％，日間精密度2.40％，樣品加標迴收率為83.88％～94.53％．該方法適用于白酒中甲醇含量的測定，測得10箇白酒樣品中甲醇的含量4.18～66.97 mg／L 之間．
이백주위원료，대갑순측정조건진행우화，건립갑순분석조건．실험결과표명：최가색보조건위즉재기류속1.00 mL／min，주온6℃／min，기화온도300℃，경기류량28 mL／min，검측기온도300℃．선성방정위 y ＝66.209x ＋1.7125，r ＝0.9996，최소검출한위0.41mg／L，일내정밀도2.07％，일간정밀도2.40％，양품가표회수솔위83.88％～94.53％．해방법괄용우백주중갑순함량적측정，측득10개백주양품중갑순적함량4.18～66.97 mg／L 지간．
This research uses the capillary -column gas chromatograph to optimize the determination conditions for the methanol content in liquor.The experimental results show that the optimal chromatographic condition for the carrier gas flow rate is 1.00 mL/min.,the column temperature 6 ℃ /min,the gasification temperature 300 ℃,the hydrogen flow 28 mL/min,and the detector′s temperature 300 ℃.The linear equation is y =66.209x +1.712 5, r =0.999 6,the minimum detection limit is 0.41 mg/L,the within -day precision is 2.07%,the day -to -day precision is 2.40%,the recoveries of the spiked samples are 83.88%—94.53%,and the average recovery is 89.38%.The methanol contents of ten samples are between 4.18 mg/L and 66.97 mg/L.
