幾種食品安全快速檢測(cè)試劑盒的開發(fā)

論文編號(hào):SW215  論文字?jǐn)?shù):11337,頁數(shù):18

摘  要：食品安全關(guān)系到人民的身體健康與生活水平，近年來有關(guān)食品安全的事件時(shí)有發(fā)生，人們?cè)絹碓疥P(guān)心食品安全問題。論文研究了三種食品中常見的危害物甲醛、二氧化硫、亞硝酸鹽和食品加工用水中有效氯的快速檢測(cè)方法，確定以DPD-硫酸亞鐵銨滴定法、AHMT目視比色法、PRA目視比色法和鹽酸萘乙二胺目視比色法作為快速檢測(cè)方法的基礎(chǔ)，通過實(shí)驗(yàn)調(diào)整并簡化操作程序，開發(fā)出快速檢測(cè)試劑盒，檢測(cè)準(zhǔn)確度與分光光度法相比，半定量誤差在15%以下，可以作為定性或半定量快速檢測(cè)方法。試劑盒具有操作簡便、檢測(cè)時(shí)間短、不需要專門儀器設(shè)備、準(zhǔn)確性能滿足快速檢測(cè)要求等特點(diǎn)。
關(guān)鍵詞：食品安全；快速檢測(cè)試劑盒；甲醛；亞硝酸鹽；二氧化硫

Abstract: Food safety is closely linked to people’s health and standard of living. More and more people are attended food safety since a lot of food safety affairs have taken place in recent years. The rapid analysis methods of the three poisonous agents in food, including formaldehyde, sulfur dioxide and nitrite, and free chlorine in water are investigated. The improved rapid analysis methods are based on titration with DPD (4-amino-N,N-diethylaniline dihydrochloride) -ferrous ammonium sulfate for free chlorine, AHMT (4-Amino-3-hydrazino-5-mercapto-1,2,4- triazole) visual color for formaldehyde, PRA (pararosaniline) visual color for sulfur dioxide and N-1-Naphthylethylenediamine visual color for nitrite. The rapid analysis kits are developed by adjusting reagents and sampling the handling procedures. The kits-methods’ error is below 15% and can be used for semi-quantity rapid analysis. The kits have advantages of simple handling procedures, short time consuming, not requiring special equipment and comparatively prescience.
Key words: Food safety; Rapid analysis kits; Formaldehyde; Nitrite; Sulfur dioxide