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In the present study a simple, sensitive and accurate method has been developed for the speciation analysis of chromium(III) and chromium(VI) in aqueous solution using ion chromatography separation followed by detection through a UV detector. Chromium(III) was detected as its pyridine-2,6-dicarboxylic acid (PDCA) complex at 365 nm by pre-derivatizing it with eluent containing PDCA. Chromium(VI) was...
Pulmonary function test (PFT) values of 50 healthy subjects and levels of pollutants like suspended particulate matter (SPM), PM10, PM2.5 in ambient air were continually investigated from February 2007 to January 2010 at Patiala, Punjab (India). Significant decrease in PFTs were observed with increase in concentration levels of pollutants during wheat and rice crop residue burning in the fields. In...
Participation in proficiency testing (PT) is an important task to meet the requirements of ISO/IEC 17025 in the area of quality assurance of laboratory results. A PT program in the field of chemical analysis of iron ore was organized by CSIR-National Metallurgical Laboratory, Jamshedpur (nodal laboratory) and CSIR-National Physical Laboratory, New Delhi (PT Coordinator) during November 2011–January...
Nowadays particle size and mass concentration measurements are the important parameter of the ambient air quality standards of several countries. The regulatory limits of mass concentration of particulate matter (PM) for the size classes of PM2.5 and PM10, i.e., particle sizes of less than or equal to 2.5 and 10 μm in aerodynamic diameter, respectively in air are defined on yearly and hourly time-weighted-average...
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