Ultratrace kinetic measurements of the reduction of methylene blue

被引：47

作者：

Hallock, AJ ^{[1
]}

Berman, ESF ^{[1
]}

Zare, RN ^{[1
]}

机构：

[1] Stanford Univ, Dept Chem, Stanford, CA 94305 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2003年 / 125卷 / 05期

关键词：

D O I：

10.1021/ja028129r

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The kinetics of methylene blue reduction by ascorbic acid in acetonitrile was investigated by cavity ring-down spectroscopy. Because of our high sensitivity we were able to use very low concentrations (1-10 nM) of the dye. Under these conditions, we observed a second-order loss of dye as well as a competing back reaction with dissolved oxygen. The use of an inexpensive diode laser and a relatively simple setup should make ultratrace kinetic studies more accessible. Copyright © 2003 American Chemical Society.

引用

收藏

页码：1158 / 1159

页数：2

相关论文

共 10 条

[1] Cavity ring-down spectroscopy: Experimental schemes and applications [J].

Berden, G ;

Peeters, R ;

Meijer, G .

INTERNATIONAL REVIEWS IN PHYSICAL CHEMISTRY, 2000, 19 (04) :565-607

[2] Direct monitoring of absorption in solution by cavity ring-down spectroscopy [J].

Hallock, AJ ;

Berman, ESF ;

Zare, RN .

ANALYTICAL CHEMISTRY, 2002, 74 (07) :1741-1743

[3]

Jain S, 1999, INT J ENERG RES, V23, P71, DOI 10.1002/(SICI)1099-114X(199901)23:1<71::AID-ER464>3.0.CO

[4]

2-G

[5] Nicotinamide adenine dinucleotide species in the horseradish peroxidase-oxidase oscillator [J].

Kirkor, E ;

Scheeline, A .

EUROPEAN JOURNAL OF BIOCHEMISTRY, 2000, 267 (16) :5014-5022

[6] Photoinduced hydride transfer reaction between methylene blue and leuco crystal violet [J].

Liu, YJ ;

Yamamoto, S ;

Sueishi, Y .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2001, 143 (2-3) :153-159

[7] Kinetics of methylene blue reduction by ascorbic acid [J].

Mowry, S ;

Ogren, PJ .

JOURNAL OF CHEMICAL EDUCATION, 1999, 76 (07) :970-974

[8]

Owada T, 2000, J MED VIROL, V62, P421

[9] REDUCTION OF METHYLENE-BLUE BY SULFIDE ION IN THE PRESENCE AND ABSENCE OF OXYGEN - SIMULATION OF THE METHYLENE BLUE-O2-HS- CSTR OSCILLATIONS [J].

RESCH, P ;

FIELD, RJ ;

SCHNEIDER, FW ;

BURGER, M .

JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (25) :8181-8186

[10] Methylene blue-ascorbic acid - An undergraduate experiment in kinetics [J].

Snehalatha, T ;

Rajanna, KC ;

Saiprakash, PK .

JOURNAL OF CHEMICAL EDUCATION, 1997, 74 (02) :228-233