An improved, sensitive method for the determination of formaldehyde in cosmetics and other commercial products is reported. The procedure is based on dilution of the sample with tetrahydrofuran-water (9:1), followed by precolumn derivatization with 2,4-dinitrophenylhydrazine and direct reversed-phas
✦ LIBER ✦
High-performance liquid chromatographic determination of α-tocopheryl nicotinate in cosmetic preparations
✍ Scribed by A. Baruffini; E. De Lorenzi; C. Gandini; M. Kitsos; G. Massolini
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 227 KB
- Volume
- 593
- Category
- Article
- ISSN
- 1873-3778
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
High-performance liquid chromatographic
✍
Carlo A. Benassi; A. Semenzato; A. Bettero
📂
Article
📅
1991
🏛
Elsevier Science
🌐
English
⚖ 402 KB
High-performance liquid chromatographic
✍
A. Aszalos; J. Crawford; P. Vollmer; N. Kantor; T. Alexander
📂
Article
📅
1981
🏛
John Wiley and Sons
🌐
English
⚖ 287 KB
👁 1 views
High-performance liquid chromatographic
✍
D. >Zivanov-Stakić; L.J. Solomun; L.J. >Zivanović
📂
Article
📅
1989
🏛
Elsevier Science
🌐
English
⚖ 191 KB
High-performance liquid chromatographic
✍
Frank T. Tao; Joan S. Thurber; Daniel M. Dye
📂
Article
📅
1984
🏛
John Wiley and Sons
🌐
English
⚖ 309 KB
👁 1 views
Reversed-phase high-performance liquid c
✍
Gary W. Schieffer
📂
Article
📅
1979
🏛
John Wiley and Sons
🌐
English
⚖ 290 KB
High-performance liquid chromatographic
✍
Mary W. Trucksess; Frederick S. Thomas; Samuel W. Page
📂
Article
📅
1994
🏛
John Wiley and Sons
🌐
English
⚖ 344 KB
In studies to determine the cause or causes of the eosinophilia myalgic syndrome (EMS) and to monitor the purity of L-tryptophan preparations, an HPLC method has been developed for determining 1,1'-ethylidenebis(L-tryptophan) (EBT) in L-tryptophan (W) preparations. The W preparations are extracted w