New developments in ion chromatographic methods for atmospheric analysis

Bächmann, K.; Blaskowitz, K. H.; Bukatsch, H.; Pohl, Stephanie; Sprenger, U.

doi:10.1016/s0021-9673(01)83918-2

Cited by 24 publications

(4 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Applications of liquid chromatography (LC) to analysis of monochloroacetic acid (MCAA) with amperometric detection [3] and analysis of trichloroacetic acid (TCAA) with UV absorption at 210 nm [14 -15] have been reported. However, a serious weakness of these methods is that they lack sufficient specificity for determination of haloacetic acids in a complicated matrix such as environmental water samples.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous Determination of Haloacetic Acids in Environmental Waters using Electrospray Ionization Liquid Chromatography Mass Spectrometry

Hashimoto¹,

Otsuki

1998

J. High Resol. Chromatogr.

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Simultaneous Determination of Haloacetic Acids in Environmental Waters using Electrospray Ionization Liquid Chromatography Mass Spectrometry

Hashimoto¹,

Otsuki

1998

J. High Resol. Chromatogr.

View full text Add to dashboard Cite

“…Haloacetic acids have been found in various environments such as rain water [13][14][15][16][17][18][19], river water [9,19,20], and conifer needles [15,16,21,22]. The haloacetic acids released from industrial wastewater, river water, and rain water may accumulate in semienclosed water bodies such as Tokyo Bay, Japan, an area that is highly eutrophic and polluted.…”

Section: Introductionmentioning

confidence: 99%

Distribution, sources, and stability of haloacetic acids in Tokyo Bay, Japan

Hashimoto

Azuma

Otsuki

1998

Enviro Toxic and Chemistry

View full text Add to dashboard Cite

Abstract-The distribution and sources of haloacetic acids in seawater in the vicinity of Tokyo Bay, Japan, were investigated, in view of the potential toxicity of these compounds to aquatic organisms. Haloacetic acids were extracted from water samples collected at 66 sampling stations (n ϭ 122). Concentrations of all nine haloacetic acids containing bromine and chlorine were determined by liquid chromatography-mass spectrometry. We found that concentrations of trichloroacetic acid (TCAA) were high (maximum: 20.3 g/L) compared to those of the other haloacetic acids in coastal seawater. The distributions and relative concentrations of TCAA and other haloacetic acids (monochloroacetic acid, dichloroacetic acid, and bromochloroacetic acid) suggest that their sources are not identical; discharge of wastewaters containing TCAA in the bay area is probably one of the main sources of the observed high concentrations of TCAA in seawater there. The mean concentrations of haloacetic acids in water samples and the results of incubation experiments of haloacetic acids in river water and seawater suggest that TCAA is relatively stable in the aquatic environment.

show abstract

“…The extraction, derivatization, and separation steps are labor-intensive, time-consuming, and involve reagents that are toxic and carcinogenic. Methods for the direct determination (i.e., no derivatization) of the haloacetic acids using chromatography 19,20 and capillary electrophoresis 21,22 have been reported using amperometric 20 or UV absorbance detection. 19,21,22 However, detection by these methods is not sufficiently specific or sensitive for the determination of HAAs in complicated matrixes.…”

mentioning

confidence: 99%

“…Methods for the direct determination (i.e., no derivatization) of the haloacetic acids using chromatography , and capillary electrophoresis , have been reported using amperometric 20 or UV absorbance detection. ,, However, detection by these methods is not sufficiently specific or sensitive for the determination of HAAs in complicated matrixes. The applicability of electrospray ionization-mass spectrometry (ESI-MS) for the direct determination of HAAs in both water and biological samples has been reported in recent literature. , While analysis by ESI-MS is considered feasible, ESI produces an abundance of solvent- and salt-related ions that give an intense mass spectral background that severely limits the detection of trace levels of HAAs.…”

mentioning

confidence: 99%

Detection of Chlorinated and Brominated Byproducts of Drinking Water Disinfection Using Electrospray Ionization−High-Field Asymmetric Waveform Ion Mobility Spectrometry−Mass Spectrometry

et al. 1999

View full text Add to dashboard Cite

The lower limit of detection for low molecular weight polar and ionic analytes using electrospray ionization-mass spectrometry (ESI-MS) is often severely compromised by an intense background that obscures ions of trace components in solution. Recently, a new technique, referred to as high-field asymmetric waveform ion mobility spectrometry (FAIMS), has been shown to separate gas-phase ions at atmospheric pressure and room temperature. A FAIMS instrument is an ion filter that may be tuned, by control of electrical voltages, to continuously transmit selected ions from a complex mixture. This capability offers significant advantages when FAIMS is coupled with ESI, a source that generates a wide variety of ions, including solvent clusters and salt adducts. In this report, the tandem arrangement of ESI-FAIMS-MS is used for the analysis of haloacetic acids, a class of disinfection byproducts regulated by the US EPA. FAIMS is shown to effectively discriminate against background ions resulting from the electrospray of tap water solutions containing the haloacetic acids. Consequently, mass spectra are simplified, the selectivity of the method is improved, and the limits of detection are lowered compared with conventional ESI-MS. The detection limits of ESI-FAIMS-MS for six haloacetic acids ranged between 0.5 and 4 ng/mL in 9:1 methanol/tap water (5 and 40 ng/mL in the original tap water samples) with no preconcentration, derivatization, or chromatographic separation prior to analysis.

show abstract

New developments in ion chromatographic methods for atmospheric analysis

Cited by 24 publications

References 7 publications

Simultaneous Determination of Haloacetic Acids in Environmental Waters using Electrospray Ionization Liquid Chromatography Mass Spectrometry

Simultaneous Determination of Haloacetic Acids in Environmental Waters using Electrospray Ionization Liquid Chromatography Mass Spectrometry

Distribution, sources, and stability of haloacetic acids in Tokyo Bay, Japan

Detection of Chlorinated and Brominated Byproducts of Drinking Water Disinfection Using Electrospray Ionization−High-Field Asymmetric Waveform Ion Mobility Spectrometry−Mass Spectrometry

Contact Info

Product

Resources

About