✦ LIBER ✦

Fluorometric Determination of Arsenic(III) with Fluorescein

✍ Scribed by Xia He; Gong Guoquan; Zhao Hui; Li Hu-Lin

Publisher: Elsevier Science
Year: 1997
Tongue: English
Weight: 56 KB
Volume: 56
Category: Article
ISSN: 0026-265X
DOI: 10.1006/mchj.1996.1387

No coin nor oath required. For personal study only.

✦ Synopsis

A rapid, simple, and sensitive fluorometric method has been developed for the determination of arsenic(III) with fluorescein as fluorogenic reagent (l ex Å 495 nm, l em Å 516 nm) at pH 5.2-7.0. A linear calibration curve was obtained in the range 0.01-2.5 mg As(III)/25 ml. The detection limit is 0.01 mg As(III)/25 ml. The method was successfully applied to the determination of arsenic(III) in waste-and river water.

📜 SIMILAR VOLUMES

Micro fluorometric binding studies of fl

Micro fluorometric binding studies of fluorescein-albumin conjugates and determination of fluorescein-protein conjugates in single fibroblasts

✍ M. Sernetz; A. Thaer 📂 Article 📅 1972 🏛 Elsevier Science 🌐 English ⚖ 621 KB

Fluorometric determination of bacterial

Fluorometric determination of bacterial protease activity using fluorescein isothiocyanate-labeled proteins as substrates

✍ Karen A. Homer; David Beighton 📂 Article 📅 1990 🏛 Elsevier Science 🌐 English ⚖ 549 KB

Intact fluorescein isothiocyanate-labeled proteins have relatively low background fluorescence at excitation and emission wavelengths of 495 and 525 nm, respectively. Degradation of these substrates leads to exposure of covalently linked fluorescein isothiocyanate molecules and to a concomitant incr

Determination of arsenic(III) for the in

Determination of arsenic(III) for the investigation of the microbial oxidation of arsenic(III) to arsenic(V)

✍ Hambsch, B. ;Raue, B. ;Brauch, H.-J. 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English ⚖ 553 KB

Spectrophotometric determination of ceri

Spectrophotometric determination of cerium(IV), arsenic(III), and nitrite with promazine hydrochloride

✍ H.Sanke Gowda; K.N. Thimmaiah 📂 Article 📅 1978 🏛 Elsevier Science 🌐 English ⚖ 343 KB

Fluorometric determination of trioses wi

Fluorometric determination of trioses with o-phenylphenol

✍ Yoshihiro Asabe; Shigeyoshi Momose; Masao Suzuki; Shoji Takitani 📂 Article 📅 1979 🏛 Elsevier Science 🌐 English ⚖ 399 KB

It was found that trioses, such as glyceraldehyde and dihydroxyacetone, could be determined by using the assay for acetaldehyde reported earlier, on the basis of the fluorescence reaction between acetaldehyde and o-phenylphenol in sulfuric acid. The calibration curves for the standard solutions of g

Fluorometric determination of carbohydra

Fluorometric determination of carbohydrate with 2-aminothiophenol

✍ Jian-Kang Zhu; Eugene A. Nothnagel 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 404 KB

The 2-aminothiophenol-based fluorometric assay of Nakano et al. (1973, J. Pharm. Soc. Jpn. 93, 350-353) for monosaccharides has been modified to improve the speed, applicability, and sensitivity of the method. The improved assay is applicable to complex carbohydrates as well as to monosaccharides. L