You need JavaScript to view this

Acceleration effect of alcohols on ion association of molbdophosphate with malachite green and its use to the sensitive flow-injection determination of phosphate. Molybdo rinsan ion-malachite green ion kaigotai seisei ni oyobosu alcohol no hanno sokushinkoka to sore wo riyosuru rin no kokando flow injection bunseki

Journal Article:

Abstract

Molibdophosphoric acid (PMo) reacts with malachite green (MG{sup +}) to form a colored ion associate (MG{sup +}- PMo) in an acidic solution according to the formula : HMG{sup 2+}+H{sub 3}PMo{sub 12}O{sub 40}{yields}(MG{sup +})H{sub 2}PMo{sub 12}O{sub 40}+2H{sup +}. A protonated form HMG{sup 2+} is yellow (the absorption mximum at 446 nm), whereas the ion associate MG{sup +} is blue green (the absorption maximum at 650 nm). MG{sup +} is found to accelerate the formation of PMo. Water-miscible organic solvents such as methanol,ethanol and propanol also accelerate the formation of PMo as well as the formation of MG sup + - PMo. Some anionic surfactants decelerate the reaction, however, contribute to the suppression of the baseline drift in a flow injection analysis (FIA). By the use of the proposed reaction accelerator and surfactant. a highly sensitive FIA system is established for,orthophosphate up to the range of several ppb. 16 figs.. 11 refs.
Authors:
Motomizu, S; Yasuda, Y; Oshima, M [1] 
  1. Okayama Univ., Okayama (Japan). Faculty of Science
Publication Date:
Dec 10, 1991
Product Type:
Journal Article
Reference Number:
NEDO-92-910488; EDB-92-109634
Resource Relation:
Journal Name: Nippon Kagaku Kaishi (Journal of the Chemical Society of Japan, Chemistry and Industrial Chemistry); (Japan); Journal Volume: 240
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ALCOHOLS; ACCELERATION; CHEMICAL REACTIONS; MOLYBDOPHOSPHORIC ACID; IONS; PHOSPHATES; SENSITIVITY; ANIONS; COLORATION; MOLYBDOPHOSPHATES; ORGANIC SOLVENTS; SURFACTANTS; CHARGED PARTICLES; HYDROGEN COMPOUNDS; HYDROXY COMPOUNDS; INORGANIC ACIDS; MOLYBDENUM COMPOUNDS; ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; REFRACTORY METAL COMPOUNDS; SOLVENTS; TRANSITION ELEMENT COMPOUNDS; 400201* - Chemical & Physicochemical Properties
OSTI ID:
5261141
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0369-4577; CODEN: NKAKB
Submitting Site:
NEDO
Size:
Pages: 1624-1631
Announcement Date:

Journal Article:

Citation Formats

Motomizu, S, Yasuda, Y, and Oshima, M. Acceleration effect of alcohols on ion association of molbdophosphate with malachite green and its use to the sensitive flow-injection determination of phosphate. Molybdo rinsan ion-malachite green ion kaigotai seisei ni oyobosu alcohol no hanno sokushinkoka to sore wo riyosuru rin no kokando flow injection bunseki. Japan: N. p., 1991. Web.
Motomizu, S, Yasuda, Y, & Oshima, M. Acceleration effect of alcohols on ion association of molbdophosphate with malachite green and its use to the sensitive flow-injection determination of phosphate. Molybdo rinsan ion-malachite green ion kaigotai seisei ni oyobosu alcohol no hanno sokushinkoka to sore wo riyosuru rin no kokando flow injection bunseki. Japan.
Motomizu, S, Yasuda, Y, and Oshima, M. 1991. "Acceleration effect of alcohols on ion association of molbdophosphate with malachite green and its use to the sensitive flow-injection determination of phosphate. Molybdo rinsan ion-malachite green ion kaigotai seisei ni oyobosu alcohol no hanno sokushinkoka to sore wo riyosuru rin no kokando flow injection bunseki." Japan.
@misc{etde_5261141,
title = {Acceleration effect of alcohols on ion association of molbdophosphate with malachite green and its use to the sensitive flow-injection determination of phosphate. Molybdo rinsan ion-malachite green ion kaigotai seisei ni oyobosu alcohol no hanno sokushinkoka to sore wo riyosuru rin no kokando flow injection bunseki}
author = {Motomizu, S, Yasuda, Y, and Oshima, M}
abstractNote = {Molibdophosphoric acid (PMo) reacts with malachite green (MG{sup +}) to form a colored ion associate (MG{sup +}- PMo) in an acidic solution according to the formula : HMG{sup 2+}+H{sub 3}PMo{sub 12}O{sub 40}{yields}(MG{sup +})H{sub 2}PMo{sub 12}O{sub 40}+2H{sup +}. A protonated form HMG{sup 2+} is yellow (the absorption mximum at 446 nm), whereas the ion associate MG{sup +} is blue green (the absorption maximum at 650 nm). MG{sup +} is found to accelerate the formation of PMo. Water-miscible organic solvents such as methanol,ethanol and propanol also accelerate the formation of PMo as well as the formation of MG sup + - PMo. Some anionic surfactants decelerate the reaction, however, contribute to the suppression of the baseline drift in a flow injection analysis (FIA). By the use of the proposed reaction accelerator and surfactant. a highly sensitive FIA system is established for,orthophosphate up to the range of several ppb. 16 figs.. 11 refs.}
journal = {Nippon Kagaku Kaishi (Journal of the Chemical Society of Japan, Chemistry and Industrial Chemistry); (Japan)}
volume = {240}
journal type = {AC}
place = {Japan}
year = {1991}
month = {Dec}
}