根據美國骨骼健康協會的建議,成年人一天需要1000-1200毫克的鈣質。如果我们不能從飲食中補充足夠的鈣質,身體將從骨骼中强取鈣,這最终將導致骨骼變細變薄。牛奶富含鈣質,所以許多人選擇牛奶作為重要的鈣質來源。Ismail研究指出,在他測試的樣品中大約有一半都有重金屬超標的問題。重金屬超標會引起骨骼損傷、腎衰竭、細胞損傷、骨質疏鬆、肺部和血液的癌症、激素紊亂、腸胃、貧血等問題。牛奶的成分非常複雜。所以如何快速、簡便的檢測成為重要的課題。目前已經有很多使用電化學方式的檢測方法被應用到實際的測試中。

According to American Bone Health Organization, adults need between 1,000 and 1,200 mg of calcium a day. If you don't get enough calcium from your diet, your body will leech what it needs from bone, which ultimately leads to thinning. Milk is rich in calcium, so many people choose it as Calcium supplements. In Ismail’s research , in half of the samples,the level of Pb and Cd was found to exceed the permissible limit (0.02 µg/g and 0.0026 µg/g) set by International Dairy Federation. The toxic impacts of heavy metals on human health include skeletal damages, renal failure, cell damages, osteoporosis, cancer of lungs and blood, hormonal disturbances, gastrointestinal problems and anemia. Milk is chemically very complex, with many different ingredients. So detectiong the level of heavy metal in milk is turned into an important task. Up to now many achievements in electrochemisty field have been reported an used for actual test,which is easy to use and cheaply.



Reference


1.Simultaneous determination of Cd(II) and Pb(II) ions in honey and milk samples using a single-walled carbon nanohorns modified screen-printed electrochemical sensor
2.Sonochemical synthesis of gum guar biopolymer stabilized copper oxide on exfoliated graphite: Application for enhanced electrochemical detection of H2O2 in milk and pharmaceutical samples