The Determination Of Heavy Metal In Rice And Wheat Flour Products And The Development Of Prevention And Control

The investigation of jinan university of changqing to sell rice flour and its products of heavy metal pollution and Put forward rational countermeasures.Although as a graduation project,since the rice flour safety problem after a lot of people really want to know what is around them.The survey is mainly made of Plumbum,Cadmium.Aluminum Methods:Around our school supermarket stores to collect different brand and origin of 16 bags or buLk rice flour samples,By graphite furnace atomic spectrophotometry for determining the content of Plumbum After reguLation of sample processing,Cadmium,comparing the existing relevant standards for rice noodle of heavy metal Cadmium content in the sample evaluation,put forward rational countermeasures.The report concludes as follows.16 samples of rice flour,one Plumbum paint samples(white elephant instant noodles),which was 6.25%,the two samples is high levels within the required range,4 samples are not detected;Cadmium content of 16 samples are not overweight,but did not check out,in addition to a sample is the rest of the 15 samples lightly contaminated with Cadmium;Aluminum content of 16 samples are not overweight,but did not check out,in addition to a sample is the rest of the 15 samples lightly contaminated with Aluminum;Plumbum health hazard of individual lifetime risk coefficient of 3.94 x 10-2;Health hazard of Cadmium personal lifetime risk coefficient of 1.73 x 10-6;Health hazard of Aluminum personal lifetime risk coefficient of 1.69 x 10-6.In conclusion,Jinan pingyin area around the university city to sell rice flour content of Plumbum and Cadmium are mild threat to human health risk,so the surrounding commercial Plumbum and Cadmium in food pose a threat to human health may not.