食品中碑含量的原子荧光检测方法研究

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Research on Atomic Fluorescence Detection Method for Arsenic Content in Food

LI Yuanyuan （Huaiyin District Disease Prevention and Control Center， Huai'an 2233oo， China）

Abstract： An atomic fluorescence spectrometry method for the determination of total arsenic in food was established based on optimization of sample pretreatment，instrumental working conditions，and reaction conditions. Results showed that the method exhibited good linearity （ R2=0.9998 ） over a total arsenic concentration range of 0.01μg⋅L-1 to 10.00μg.L-1 ， with a detection limit of ，spiked recoveries of 85.0% to 105.0% ， and relative standard deviations of no more than 3.5% .Compared with conventional methods， thismethod offersadvantages such as high sensitivitygood reproducibility，and easeofoperation.Itissuitable for rapid screening of total arsenic ina variety offood matrices，including grains，fruitsand vegetables，meat，andaquatic products，andcan provideeffective technical support for routine food safety supervision.

Keywords： food; arsenic; atomic fluorescence spectroscopy

砷作为一种高毒性重金属元素，在自然界中广泛存在，可通过土壤、水源等途径进入农作物及畜禽产品等食品中。（剩余4719字）