A systematic strategy for the identification and determination of pharmaceuticals in environment using advanced LC–MS tools: Application to ground water samples

2015 ◽  
Vol 108 ◽  
pp. 86-96 ◽  
Author(s):  
Kriti Jindal ◽  
Mallikarjun Narayanam ◽  
Saranjit Singh
Keyword(s):  
Ground Water ◽  
Water Samples ◽  
Systematic Strategy

Direct Spectrophotometric Analysis of Cr(VI) Using a Liquid Waveguide Capillary Cell

2008 ◽  
Vol 62 (1) ◽  
pp. 107-115 ◽  
Author(s):  
Tatiana G. Levitskaia ◽  
Matthew J. O'Hara ◽  
Sergei I. Sinkov ◽  
Oleg B. Egorov
Keyword(s):  
Ground Water ◽  
Water Samples ◽  
Natural Waters ◽  
Direct Determination ◽  
Concentration Data ◽  
Actual Surface ◽  
Optical Absorbance ◽  
Vis Spectroscopy ◽  
Liquid Waveguide Capillary Cell

Hexavalent chromium Cr(VI) is a notorious ground water contaminant toxic to humans and animals. Assessment of an exposure risk for aquatic receptors necessitates frequent Cr(VI) concentration data from a range of surface and groundwater locations at Cr(VI) contamination sites. In this work, we demonstrate that enhanced ultraviolet–visible (UV-vis) spectroscopy using a liquid waveguide capillary cell (LWCC) offers an easy-to-use and economical methodology for the determination of chromate anion CrO42− in Hanford natural waters without chemical pretreatment and generation of hazardous waste. Direct determination of CrO42− in actual surface and ground water samples with the complexities of competing ions, dissolved organics, and other potential interfering agents was achieved by measuring the chromate optical absorbance at 372 nm. For a 100 cm path length LWCC, the detection limit for chromate was found to be as low as 0.073 ppb. A quantitative relationship between the intensity of the absorbance signal and water pH allowed for the straightforward calculation of total Cr(VI) content in natural water. The described method is applicable for in-field monitoring of Cr(VI) in environmental water samples at trace levels.

Determination of benzoylureas in ground water samples by fully automated on-line pre-concentration and liquid chromatography-fluorescence detection

2006 ◽  
Vol 1103 (2) ◽  
pp. 271-277 ◽  
Author(s):  
M.D. Gil García ◽  
M. Martínez Galera ◽  
D. Barranco Martínez ◽  
J. Gisbert Gallego
Keyword(s):  
Liquid Chromatography ◽  
Ground Water ◽  
Fluorescence Detection ◽  
Water Samples ◽  
On Line

ELEMENTAL ANALYSIS OF GROUND WATER USING PIXE AND PIGE TECHNIQUES

2012 ◽  
Vol 22 (03n04) ◽  
pp. 259-269 ◽  
Author(s):  
RAJBIR KAUR ◽  
A. KUMAR ◽  
B. P. MOHANTY ◽  
MUMTAZ OSWAL ◽  
NAVNEET KAUR ◽  
...  
Keyword(s):  
Trace Elements ◽  
Ground Water ◽  
Elemental Analysis ◽  
Water Samples ◽  
Gamma Ray ◽  
Elemental Content ◽  
Human Beings ◽  
X Ray ◽  
Gamma Ray Emission

Water is the most important source of minerals for both human beings and animals. But at the same time, water is also a source of disease due to the contamination of various elements. Therefore, knowledge of the elemental content of water is important. In this work, water samples were collected from areas around Chandigarh and Bathinda district, Panjab, India. Proton-induced X-ray emission (PIXE) and proton-induced gamma-ray emission (PIGE) techniques were used for the determination of heavy and light trace elements, respectively, in wide varieties of water samples. A large number of elements, namely F, Na, S, Cl, K, Ca, Ti, Cr, Mn, Fe, Cu, Zn, As, Pb , and U were detected in the samples and results are discussed.

scholarly journals Photoinduced chemiluminescence determination of carbamate pesticides

2016 ◽  
Vol 15 (5) ◽  
pp. 626-634 ◽  
Author(s):  
M. Catalá-Icardo ◽  
S. Meseguer-Lloret ◽  
S. Torres-Cartas
Keyword(s):  
Ground Water ◽  
Water Samples ◽  
Chemiluminescence Detection ◽  
Carbamate Pesticides

Selective and sensitive HPLC-photoinduced chemiluminescence detection of carbamate pesticides containing sulphur in surface and ground water samples.

Sign in / Sign up

Export Citation Format

Share Document