✦ LIBER ✦

The effect of a cationic surfactant on basic hydrolysis of p-nitrophenyl esters

✍ Scribed by Noriaki Funasaki

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 641 KB
Volume: 64
Category: Article
ISSN: 0021-9797
DOI: 10.1016/0021-9797(78)90388-0

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Effects of head group of cationic surfac

Effects of head group of cationic surfactants on the hydrolysis of p-nitrophenyl acetate catalyzed by α-chymotrypsin

✍ Kallol K. Ghosh; Santosh Kumar Verma 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 140 KB

## Abstract The kinetics of hydrolysis of __p__‐nitrophenyl acetate catalyzed by α‐chymotrypsin (α‐CT) has been studied in the presence of several cationic surfactants having different head groups maintaining the dodecyl hydrophobic residue and bromide counterion. The enzyme activity was tested in

The effect of ultrasound on the alkaline

The effect of ultrasound on the alkaline hydrolysis of nitrophenyl esters

✍ David S. Kristol; Herbert Klotz; Richard C. Parker 📂 Article 📅 1981 🏛 Elsevier Science 🌐 French ⚖ 116 KB

Effects of Mixed Anionic and Cationic Su

Effects of Mixed Anionic and Cationic Surfactants on Rate of Transesterification and Hydrolysis of Esters

✍ Mohammad Niyaz Khan 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 81 KB

NOTE Effects of Mixed Anionic and Cationic Surfactants on Rate of Transesterification and Hydrolysis of Esters appearance of the product, phenolate ion, at 290 nm. The observed data (absorbance, A obs , versus time, t) were found to obey pseudo-first-order The effects of mixed sodium dodecyl sulfate

Effects of metal ions on the hydrolysis

Effects of metal ions on the hydrolysis of p-nitrophenyl caproate by modified poly(ethylenimine)s

✍ Toru Takagishi; Irving M. Klotz 📂 Article 📅 1979 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 471 KB

## Abstract Hydrolysis of nitrophenyl caproate by modified poly(ethylenimine)s containing imidazole moieties is markedly enhanced in the presence of divalent metal ions. The order of effectiveness is Cu(II) > Co(II) > Zn(II) > Ni(II) > Mn(II), with Cu increasing the rate about 20‐fold. The accelera

Effect of Sodium Halide on Dynamic Surfa

Effect of Sodium Halide on Dynamic Surface Tension of a Cationic Surfactant

✍ Lü Feng-Feng; Zheng Li-Qiang; Gao Yan-An; Li Gan-Zuo; Tong Zhen-He 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 94 KB

Histidine-containing cyclic dipeptides a

Histidine-containing cyclic dipeptides as catalysts in the hydrolysis of carbonic acid p-nitrophenyl esters

✍ Yukio Imanishi; Masao Tanihara; Toshiharu Sugihara; Toshinobu Higashimura 📂 Article 📅 1977 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 677 KB

## Abstract A histidine‐containing cyclic dipeptide, cyclo(D‐Leu‐L‐His), was almost 20 times as efficient a catalyst as imidazole in the hydrolysis of __p__‐nitrophenyl laurate. The effect of dioxane on the hydrolysis showed that hydrophobic interaction between the cyclic dipeptide and the ester is