Analysis of potassium formate in airport storm water runoff by headspace solid-phase microextraction and gas chromatography-mass spectrometry

Autor(en): Fries, Elke
Klasmeier, Joerg 
Stichwörter: Biochemical Research Methods; Biochemistry & Molecular Biology; Chemistry; Chemistry, Analytical; De-icing fluids; Formic acid; GC-MS; HS-SPME; Methyl formate
Erscheinungsdatum: 2009
Herausgeber: ELSEVIER SCIENCE BV
Journal: JOURNAL OF CHROMATOGRAPHY A
Volumen: 1216
Ausgabe: 5
Startseite: 879
Seitenende: 881
Zusammenfassung: 
Potassium formate was extracted from airport storm water runoff by headspace solid-phase microextraction (HS-SPME) and analyzed by GC-MS. Formate was transformed to formic acid by adding phosphoric acid. Subsequently, formic acid was derivatized to methyl formate by adding methanol. Using sodium [(2)H]formate (formate-d) as an internal standard, the relative standard deviation of the peak area ratio of formate (m/z 60) and formate-d (m/z 61) was 0.6% at a concentration of 208.5 mg L(-1). Calibration was linear in the range of 0.5-208.5 mg L(-1). The detection limit calculated considering the blank value was 0.176 mg L(-1). The mean concentration of potassium formate in airport storm water runoff collected after surface de-icing operations was 86.9 mg L(-1) (n = 11) with concentrations ranging from 15.1 mg L(-1) to 228.6 mg L(-1). (C) 2008 Elsevier B.V. All rights reserved.
ISSN: 00219673
DOI: 10.1016/j.chroma.2008.11.052

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