𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A ninhydrin-orthophthalaldehyde reagent for the determination of Nτ-methylhistidine

✍ Scribed by Leigh C. Ward

Publisher
Elsevier Science
Year
1978
Tongue
English
Weight
349 KB
Volume
88
Category
Article
ISSN
0003-2697

No coin nor oath required. For personal study only.

✦ Synopsis

A ninhydrin-orthophthalaldehyde reagent for the determination of NV-methylhistidine has been developed. The sensitivity of the reagent is similar to that of ninhydrin. Since most amino acids are not detected by the reagent, this allows the determination of Nr-methylhistidine in the presence of high concentrations of other amino acids. The reagent has been successfully used for the analysis of iV'-methylhistidine in human urine.

📜 SIMILAR VOLUMES

A new reagent for the detection and grav
A new reagent for the detection and gravimetric determination of sodium
✍ H. Sanke Gowda; W.I. Stephen 📂 Article 📅 1961 🏛 Elsevier Science 🌐 English ⚖ 314 KB

## Introduction With the exception of the triple uranyl acetate salts there are few satisfactory weighing forms for sodium. Other inorganic reagents have been recommended, but these have never been able to compete with the uranyl acetate reagents. In the field of organic reagents, dihydroxytartari

Resorcinol as a reagent for the spectrop
Resorcinol as a reagent for the spectrophotometric determination of ferric iron
✍ G.S. Rao 📂 Article 📅 1959 🏛 Elsevier Science 🌐 English ⚖ 358 KB

In a recent communication the use of resorcinol as a reagent for the spectrophotometric determination of uranium has been rcportcd 1. Resorcinol gives a violet colour with ferric ions, which is unaffectctl by ferrous ions. In contrast to existing methods+6 the preparation of the reagent is simple. T