Purnendu K. Dasgupta

TL;DR: In this paper, the authors describe a fully computer controlled, field-portable, suppressed conductometric ion chromatograph that fits in a standard briefcase (28×43×15 cm) and weighs 10 kg.

TL;DR: A new automated continuous instrument for the simultaneous measurement of atmospheric hydrogen peroxide and methyl hydroperoxide (MHP) is described and design, performance details, and illustrative results from a field campaign (Philadelphia NEO3PS study, 2001) are presented.

TL;DR: A practical sequential injection/zone fluidics-based analyzer that measures waterborne arsenic and is capable of differentiating between inorganic As(III) and As(V), and a new borohydride solution formulation permits month-long reagent stability.

TL;DR: A sensitive liquid chromatographic method with an unique selectivity for determination of nitro-substituted polynuclear aromatic hydrocarbons in ambient suspended particulate matter and applications to diesel engine exhaust samples are demonstrated.

TL;DR: A novel cyanide analyzer based on sensitive cobinamide chemistry relies on simultaneous reagent and sample injection and detection in a 50 cm liquid core waveguide (LCW) flow cell illuminated by a white light emitting diode, demonstrating applicability by analyzing the hydrolytic cyanide extract of apple and pear seeds with orange seeds as control and also measuring HCN in breath air samples.