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                                                                                                                                速測試劑盒
                                                                                                                                首頁  -  快速檢測試劑  -  速測試劑盒

                                                                                                                                奶粉蛋白質快速檢測試劑

                                                                                                                                資料添加整理中...

                                                                                                                                產品描述

                                                                                                                                【適用范圍】 奶粉蛋白質快速檢測試劑廣泛用于奶粉蛋白質的快速檢測

                                                                                                                                【檢測原理】假冒偽劣的奶粉中,蛋白質含量往往不能達標。長期食用這種奶粉,會造成嬰幼兒營養不良,生長發育遲緩,干瘦水腫,頭大體小,免疫力降低,器官受損甚至危及生命。因此,測定奶粉中蛋白質的含量是食品安全檢測中非常重要的項目之一。本速測盒采用經典的蛋白質測定方法,奶粉中的蛋白質可迅速與本試劑反應生成紫紅色產物,顏色越深,表示樣品中蛋白質的含量越高,與標準色階比較,可以得出樣品中蛋白質的半定量結果。

                                                                                                                                【規    格】50次。

                                                                                                                                【貯    藏】 常溫,避光。

                                                                                                                                【包    裝】1、檢測液A:1瓶。

                                                                                                                                【參考標準】GB/T 16129 –1995、GB/T 2760-1996

                                                                                                                                【生產日期】

                                                                                                                                【有 效 期】6個月。

                                                                                                                                【使用方法】

                                                                                                                                1.用塑料杯稱取奶粉1克用塑料刻度吸管加入14ml蒸餾水或純凈水,用吸管攪拌或振搖令其溶解或分散均勻,樣品液放置10分鐘以上并時時攪拌,溶解均勻的懸浮液即為樣品液;

                                                                                                                                2.用塑料刻度吸管吸.取2ml檢測液A移入管制瓶中;用吸取樣品的塑料吸管再次攪勻樣品液然后吸取奶粉樣品液并滴入5滴到裝有檢測液A的瓶中,振搖混勻。顯色5分鐘,觀察顏色變化并與標準比色卡對比,找出與對照色卡上相近的色階即為每100g乳粉樣品中蛋白質的含量。當樣品中蛋白質含量低于標準規定量時,可送實驗室中進一步檢測。

                                                                                                                                【注意事項】

                                                                                                                                1.有些奶粉產品溶解性差,為了保證取樣的均勻性與代表性,在取樣進行反應時要再次攪勻樣品液;2、試劑長期放置會出現少許白色沉淀,不影響測定。如發生黑色沉淀應棄去。3.實驗用水應使用蒸餾水或純凈水;4.每次使用后,實驗器皿應盡快用清水洗凈,然后用蒸餾水或純凈水洗后涼干備用,否則可能會有有色的反應產物沉淀,影響使用。5.試劑有腐蝕性請注意防護。

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