| Commercially available vegetable and fruit juice are commonly used in food preservatives mainly benzoic acid, sorbic acid and dehydroacetic acid, commonly used sweetener saccharin, Acesulfame-K have(acesulfame potassium) etc.. In recent years, with the rapid development of the food industry, food quality safety issues are becoming more and more prominent, especially the excessive or illegal use of food additives phenomenon repeated. The quality supervision and management departments of Governments at different levels strengthen their supervision, inspection agencies at different levels are facing increasingly heavy inspection tasks. The use of national testing standards of the current is the pretreatment technique and analysis of different testing methods, only the additives determination of 1 or 2-3 for simultaneous determination of simultaneous determination of additives, less 3 or more methods, in order to improve the test efficiency, strengthen the quality of food safety supervision, establish at the same time it is particularly important detection food additive.The discussion of HPLC method for simultaneous determination in the fruit and vegetable juice of benzoic acid, sorbic acid, Saccharin sodium, Acesulfame-K and dehydroacetic acid, this method is simple, accurate, high detection efficiency, is suitable for the detection of institutions at different levels and production enterprise, has a good application prospect in the quality supervision of Xinjiang fruit and vegetable juice detection. The results show that, good linearity in the range of 0.10mg/mL ~ 0.00mg/mL linear correlation coefficient, R, in 0.95 ~ 0.98 between the 5 kinds of food additives, the lowest detection limit is 0.10mg/kg, 0.35 mg/kg, 0.35 mg/kg, 0.35 mg/kg, 0.10mg/kg; recovery rate of samples in 98% ~ 99%, the relative standard deviation in 1.02% ~ 1.52% range. |
