scholarly journals Surfactant Assisted Separation Spectrophotometric Procedure for the Trace Analysis of Copper (II) in Drug and Water Samples Using a Heterocyclic Pyridyl Azo Dye

2015 ◽  
Vol 06 (09) ◽  
Author(s):  
Magda A Akl Magdy M Bekheit ◽  
Qasim Mezban Salih
Keyword(s):  
Water Samples ◽  
Trace Analysis ◽  
Azo Dye ◽  
Spectrophotometric Procedure ◽  
Surfactant Assisted

scholarly journals GC-MS/MS method for trace analysis of chlorophenoxy acidic herbicides from water samples

2019 ◽  
pp. 71-72
Author(s):  
Diana Maria Puiu ◽  
Roxana Scutariu ◽  
Vasile Iancu ◽  
Alina Tatarus ◽  
Luoana Florentina Pascu ◽  
...  
Keyword(s):  
Water Samples ◽  
Trace Analysis ◽  
Acidic Herbicides

Trace analysis of parabens preservatives in drinking water treatment sludge, treated, and mineral water samples

2018 ◽  
Vol 25 (15) ◽  
pp. 14460-14470 ◽  
Author(s):  
Ana Victoria Marta-Sanchez ◽  
Sergiane Souza Caldas ◽  
Antunielle Schneider ◽  
Sónia Maria Vaz Sanches Cardoso ◽  
Ednei Gilberto Primel
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Water Samples ◽  
Trace Analysis ◽  
Mineral Water ◽  
Drinking Water Treatment ◽  
Water Treatment Sludge

Trace Analysis of Phenols in Water by Gas Chromatography

1975 ◽  
Vol 32 (2) ◽  
pp. 292-294 ◽  
Author(s):  
Derek A. J. Murray
Keyword(s):  
Gas Chromatography ◽  
Lower Limit ◽  
Water Samples ◽  
Trace Analysis ◽  
Organic Material ◽  
Limit Of Detection ◽  
Internal Standard ◽  
Low Concentrations ◽  
Trimethylsilyl Derivatives ◽  
Derivatives Of

A method for analysis of low concentrations of phenols, cresols, and xylenols in water samples was developed. O-xylene was added to the sample as an internal standard and the sample was extracted once with chloroform to remove a portion of the total organic material present. The trimethylsilyl derivatives of the phenols were formed and analysis completed by gas chromatography. The method was rapid and required a minimum of sample manipulation. The lower limit of detection was 0.100 mg/liter for phenol, 0.025 mg/liter for cresols, and 0.050 mg/liter for xylenols.

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