Sequential injection determination of orthophosphate as ion associate of 12-molybdophosphate with Astra Phloxine

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11160%2F11%3A10100197" target="_blank" >RIV/00216208:11160/11:10100197 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0039914011001998" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0039914011001998</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.talanta.2011.02.046" target="_blank" >10.1016/j.talanta.2011.02.046</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Sequential injection determination of orthophosphate as ion associate of 12-molybdophosphate with Astra Phloxine

Popis výsledku v původním jazyce

A simple and fast reaction between 12-molybdophosphate heteropoly anion and the polymethine dye Astra Phloxine was used for the development of a new SIA method for the determination of orthophosphate. The suggested method has higher sensitivity and a broader calibration range than existing SIA methods. It can be used to detect phosphate in the range from 0.2 to 10 mu mol L(-1) with a detection limit of 0.1 mu mol L(-1) and an acceptable throughput of 20 samples h(-1). The comparably low molybdate (5.6 mmol L(-1)) and dye (0.1 mmol L(-1)) concentrations led to an improvement in the stability of the base line. Inter-day reproducibility was better than 5%, while the intra-day RSD was in the range 0.8-3.5%. The method was used for the analysis of natural water samples and phosphorus-containing chemicals having a low content of orthophosphate.

Název v anglickém jazyce

Sequential injection determination of orthophosphate as ion associate of 12-molybdophosphate with Astra Phloxine

Popis výsledku anglicky

A simple and fast reaction between 12-molybdophosphate heteropoly anion and the polymethine dye Astra Phloxine was used for the development of a new SIA method for the determination of orthophosphate. The suggested method has higher sensitivity and a broader calibration range than existing SIA methods. It can be used to detect phosphate in the range from 0.2 to 10 mu mol L(-1) with a detection limit of 0.1 mu mol L(-1) and an acceptable throughput of 20 samples h(-1). The comparably low molybdate (5.6 mmol L(-1)) and dye (0.1 mmol L(-1)) concentrations led to an improvement in the stability of the base line. Inter-day reproducibility was better than 5%, while the intra-day RSD was in the range 0.8-3.5%. The method was used for the analysis of natural water samples and phosphorus-containing chemicals having a low content of orthophosphate.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

FR - Farmakologie a lékárnická chemie

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Talanta

ISSN

0039-9140

e-ISSN

—

Svazek periodika

84

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

1355-1360

Kód UT WoS článku

000292475600027

EID výsledku v databázi Scopus

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