食品工程
食品工程
식품공정
FOOD ENGINEERING
2014年
4期
33-36
,共4页
气相色谱%食品%甜蜜素%深入研究
氣相色譜%食品%甜蜜素%深入研究
기상색보%식품%첨밀소%심입연구
gas chromatogram%food%sodium cyclamate%further research
通过气相色谱和质谱方法定性,确定了甜蜜素衍生化产物的目标峰和干扰峰,目标峰为环己醇亚硝酸酯,即甜蜜素定量峰,干扰峰为环己醇,目标峰会随着时间的变化逐渐转化成干扰峰。通过对不同时间段的甜蜜素衍生化目标产物回收率进行统计,分析表明在样品处理完24 h之内进样,甜蜜素回收率在85%~95%之间,甜蜜素在1 mg/L~5 mg/L范围内线性关系良好,相关系数为0.9983。因此在样品处理完24 h之内上机检测,能保证结果的准确可靠。
通過氣相色譜和質譜方法定性,確定瞭甜蜜素衍生化產物的目標峰和榦擾峰,目標峰為環己醇亞硝痠酯,即甜蜜素定量峰,榦擾峰為環己醇,目標峰會隨著時間的變化逐漸轉化成榦擾峰。通過對不同時間段的甜蜜素衍生化目標產物迴收率進行統計,分析錶明在樣品處理完24 h之內進樣,甜蜜素迴收率在85%~95%之間,甜蜜素在1 mg/L~5 mg/L範圍內線性關繫良好,相關繫數為0.9983。因此在樣品處理完24 h之內上機檢測,能保證結果的準確可靠。
통과기상색보화질보방법정성,학정료첨밀소연생화산물적목표봉화간우봉,목표봉위배기순아초산지,즉첨밀소정량봉,간우봉위배기순,목표봉회수착시간적변화축점전화성간우봉。통과대불동시간단적첨밀소연생화목표산물회수솔진행통계,분석표명재양품처리완24 h지내진양,첨밀소회수솔재85%~95%지간,첨밀소재1 mg/L~5 mg/L범위내선성관계량호,상관계수위0.9983。인차재양품처리완24 h지내상궤검측,능보증결과적준학가고。
The two peaks in the chromatogram of sodium cyclamate derivative products were determined by gas chro-matography and mass spectrometry methods. The target product peak was cyclohexanol nitrite. It was used to quantify sodium cyclamate in food. And the by-product peak was cyclohexanol. The target product peak would gradually turn to the by-product peak. In this article, the target product recoveries of sodium cyclamate were recorded according to different time periods. Results showed that the linearity of calibration curve was very good in the range of 1 mg/L~5 mg/L within 24 hours of the sample pretreated. The correlation coefficient was 0.998 3,and the recoveries were 85%~95%. So the results would be accurate and reliable if the sodium cyclamate derivative products were detected in gas chromatography within 24 hours.