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  5. 清潔類化粧品中 5-bromo-5-nitro-1,3-dioxane及甲醛之檢驗方法開發
 
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清潔類化粧品中 5-bromo-5-nitro-1,3-dioxane及甲醛之檢驗方法開發

Other Title
Development of analytical method for determination of 5-bromo-5-nitro-1,3-dioxane and formaldehyde in rinse-off cosmetics
Type
thesis
Date Issued
2014-07-04
Author(s)
鄭淑晶
Advisor
許秀蘊
Subjects
系所名稱:藥學系(碩博士班)
Description
學位別:碩士
語文別:中文
指導教授:許秀蘊
共同指導教授:
口試委員:李安榮;陳繼明;許光陽;林淑娟
中文關鍵字:清潔類化粧品;洗去型;甲醛;甲醛供體;超高效液相層析法
Abstract
為了預防化粧品在長時間的使用過程中受到微生物汙染(例如:黴菌和酵母菌),保障產品安全性,添加適量防腐劑是有其必要性。甲醛和5-bromo-5-nitro-1,3-dioxane被用在清潔類(或洗去型)化粧品中當作抗菌和防腐作用,特別是在洗面乳、洗髮精和沐浴乳中。甲醛於2006年被世界衛生組織WHO的國際癌症研究中心 ( International Agency for Research on Cancer)分類為第一類人類致癌物,5-bromo-5- nitro-1,3-dioxane (BND)則是一種含溴的抗菌化合物,國際上化粧品法規對其有不同的限量規定。因此,同時檢測化粧品中甲醛及5-bromo-5-nitro-1,3-dioxane的含量是有其必要性。本研究超高液相層析法可同時運用在不同清潔類化粧品中甲醛及5-bromo-5-nitro-1,3-dioxane的檢測,本方法僅將檢體經過簡單萃取並與乙醯丙酮衍生,不須經淨化或濃縮步驟便可以分析,檢驗方法確效以線性、準確度、精密度、定量極限及檢測極限來確保方法的性能,在最適化條件下,甲醛濃度在0.1到20 ppm之間,5-bromo-5-nitro-1,3-dioxane濃度在2到200 ppm之間,吸收光譜強度與濃度均呈線性關係,判定係數 (r2) 分別為1.0及0.9996,全部回收率均大於82 %,精密度之變異係數均小於8.2%,定量極限分別為0.1 ppm及2 ppm,檢測極限分別為0.02 ppm及0.8 ppm。本研究開發之方法具有寬的線性範圍,高選擇性和靈敏度,定量極限分別遠低於國際化粧品的規範,因此,本分析方法適用於市售清潔類化粧品中5-Bromo-5-nitro- 1,3-dioxane及甲醛的常規品質監測。
URI
https://203.71.86.71/handle/123456789/56980

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