A NEW SYNTHESIS OF β NITRO CARBONYL COMPOUNDS FROM ALKYL VINYL KETONES WITH SODIUM NITRITE-ACETIC ACID IN TETRAHYDROFURAN

1981 ◽  
Vol 10 (12) ◽  
pp. 1677-1678 ◽  
Author(s):  
Tetuo Miyakoshi ◽  
Shojiro Saito ◽  
Ju Kumanotani
1987 ◽  
Vol 60 (11) ◽  
pp. 4143-4144 ◽  
Author(s):  
Takashi Morimoto ◽  
Masao Hirano ◽  
Hiroyuki Ashiya ◽  
Hidetaka Egashira ◽  
Xiumin Zhuang

2005 ◽  
Vol 88 (2) ◽  
pp. 592-594 ◽  
Author(s):  
Hardy J Chou

Abstract A liquid chromatography (LC) method using a thermal energy analyzer (TEA) is described for the determination of diethanolamine (DEA) in shampoo products containing fatty acid diethanolamides. DEA was converted to N-nitrosodiethanolamine (NDELA) by dissolving a portion of the product in 6M acetic acid and mixing with sodium nitrite for 1 h at room temperature. The reaction mixture was dried, dissolved in acetone, and analyzed for NDELA by LC-TEA. The recovery of DEA from 2 shampoo products at fortification levels of 25, 250, and 1000 ppm ranged from 70 to 105%. Twenty shampoo products were analyzed by this method, and 19 were found to contain DEA at levels ranging from 140 to 15 200 ppm.


Sign in / Sign up

Export Citation Format

Share Document