タイトル無し
スポンサーリンク
概要
- 論文の詳細を見る
A systematic detection and determination method of impurities in 10 kinds of cosmetic coaltar dyes was developed with the aid of HPLC under the following operation conditions. "Zipax SAX" (strong anion exchange resin) column, gradient elution system of 0.01M sodium borate and 0.2M sodium perchlorate with UV detection system at the wavelength of 254nm. In order to estimate organic impurities in cosmetic coal-tar dyes, total regulation system of organic matter impurities was proposed; i.e. contents of starting material residues and uncombined intermediates were expressed as typical starting material, while total subsidiary dyes were expressed as the quantities of original dyes. By use of the proposed method, actual survey was carried out on 38 samples of cosmetic azo coal-tar dyes.
- 日本化粧品技術者会の論文
日本化粧品技術者会 | 論文
- 加齢臭発生機序に基づく対処商品の開発
- ヒトのくせ毛の微細構造
- 触動作の特徴抽出による化粧品の使用感評価--スキンケア製品の塗布動作
- 新規カチオン性ポリマーの開発とその応用
- 顔面頬部位立体形状の加齢変化