CAJ | 학술논문

目的：建立同时测定凉拌菜中1,2-丙二醇和1,3-丙二醇的气相色谱分析方法。方法样品中的丙二醇经无水乙醇提取、浓缩后,用毛细管柱气相色谱法测定。结果1,2-丙二醇和1,3-丙二醇分别在3.03~505.00 mg/L和3.06~510.00 mg/L范围内呈良好的线性关系,相关系数分别为0.9999和1,方法的检出限分别为0.95 mg/kg和0.96 mg/kg (S/N=3),在60、30、3 mg/kg 3个添加水平下,1,2-丙二醇和1,3-丙二醇的平均回收率为93.7%~107.8%, RSD为0.97%~2.26%(n=9)。结论本方法灵敏度高、重现性好、简单快捷,用于凉拌菜中1,2-丙二醇和1,3-丙二醇的同时检测,结果较满意。
목적：건립동시측정량반채중1,2-병이순화1,3-병이순적기상색보분석방법。방법양품중적병이순경무수을순제취、농축후,용모세관주기상색보법측정。결과1,2-병이순화1,3-병이순분별재3.03~505.00 mg/L화3.06~510.00 mg/L범위내정량호적선성관계,상관계수분별위0.9999화1,방법적검출한분별위0.95 mg/kg화0.96 mg/kg (S/N=3),재60、30、3 mg/kg 3개첨가수평하,1,2-병이순화1,3-병이순적평균회수솔위93.7%~107.8%, RSD위0.97%~2.26%(n=9)。결론본방법령민도고、중현성호、간단쾌첩,용우량반채중1,2-병이순화1,3-병이순적동시검측,결과교만의。
Objective To establish a method of simultaneous determination of 1,2 propanediol and 1,3 propanediol in salad by gas chromatography. Methods Propanediols in samples were extracted with anhydr-ous alcohol concentrated by rotary evaporator and analyzed by gas chromatography. Results The method showed a good linearity over the range of 3.03~505.00 mg/L for 1,2 propanediol and 3.06~510.00 mg/L for 1,3 propanediol, with correlation coefficients of 0.9999 and 1 respectively. The limits of detection for 1,2 propane-diol and 1,3 propanediol were 0.95 mg/kg and 0.96 mg/kg (S/N=3), respectively. The recoveries were 93.7%~107.8%at the spiked level of 60, 30, 3 mg/kg with the RSD between 0.97%and 2.26%(n=9). Conclu-sion This method is sensitive, reliable, and simple, which has been applied for the determination of 1,2 propa-nediol and 1,3 propanediol in salad with satisfactory results.