TITLE

Instrumental modification intended to save time, and volumes of sample and reagent solutions, in the atomic fluorescence spectrometric determination of mercury

AUTHOR(S)
Pérez-Sirvent, Carmen; Martínez-Sánchez, María J.; García-Lorenzo, Mariluz; López-García, Ignacio; Hernández-Córdoba, Manuel
PUB. DATE
May 2007
SOURCE
Analytical & Bioanalytical Chemistry;May2007, Vol. 388 Issue 2, p495
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Use of small membrane pumps, instead of peristaltic pumps, to introduce sample and reagent solutions into the spectrometer has several advantages in atomic fluorescence spectrometric determination of mercury. This simple modification results in a substantial saving in the time required for the measurements and so 90% of reagent solution volumes and 95% of sample solution volumes are saved, with a consequent decrease in the volume of waste generated. The sampling frequency is almost tripled, with no deterioration in sensitivity, which is similar to that obtained by use of peristaltic pumps. The relative standard deviation for ten consecutive measurements of a 1 μg L−1 mercury solution was approximately 2%. [Figure not available: see fulltext.]
ACCESSION #
24940197

 

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