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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geprüft am 19.05.2024