Skip to main content
Log in

Development and Application of the Detector-Response-Ratio Method of Identification for a Dual-Detection System. Application of GC with Electron-Capture and Nitrogen–Phosphorus Detection to the Determination of Pesticides in Aqueous Matrices

  • Original
  • Published:
Chromatographia Aims and scope Submit manuscript

Abstract

Dual detection has already been used to analyse organic contaminants in several matrices and the potential use of this technique for compound identification using the detector-response ratio (DRR) for two detectors has been reported. In this study DRR was redefined in terms of analyte concentration. The ratio was applied to compounds with both positive and negative responses fitting linear or logarithmic calibration plots. Use of DRR has been evaluated for pesticides of several chemical classes (organochlorine, organophosphorus, triazine, and thiocarbamate) and for an organophosphate ester, in aqueous matrices, using electron-capture and nitrogen–phosphorus detection. A limit of confirmation (LOC) was defined as the minimum concentration required for identification of a compound by use of the DRR. The identification results obtained were confirmed by GC–MS.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2

Similar content being viewed by others

References

  1. EPA (1995) Method 508, Determination of chlorinated pesticides in drinking water by GC–ECD. In: Methods for the determination of organic compounds in drinking water—supplement III (EPA/600/R-95-131)

  2. EPA (1995) Method 507, Determination of nitrogen and phosphorus-containing pesticides in drinking water. In: Methods for the determination of organic compounds in drinking water—supplement III (EPA/600/R-95-131)

  3. Loconto PR, Gaind AK (1989) J Chromatogr Sci 27:569–573

    Article  CAS  Google Scholar 

  4. Zuin VG, Yariwake JH, Bicchi C (2003) J Chromatogr A 985:159–166

    Article  CAS  Google Scholar 

  5. Gaillard Y, Gaymontchamp JP, Ollagnier M (1993) J Chromatogr 622:197–208

    Article  CAS  Google Scholar 

  6. Lillsunde P, Seppala T (1990) J Chromatogr 533:97–110

    Article  CAS  Google Scholar 

  7. OhShin YS, Ko M, Shin HS (1997) J Chromatogr A 769:285–291

    Article  CAS  Google Scholar 

  8. Tse H, Comba M, Alaee M (2004) Chemosphere 54:41–47

    Article  CAS  Google Scholar 

  9. Bernal JL, Delnozal MJ, Atienza J, Jimenez JJ (1992) Chromatographia 33:67–76

    Article  CAS  Google Scholar 

  10. Bicchi C, Damato A, Binello A (1996) J High Resolut Chromatogr 19:80–84

    Article  CAS  Google Scholar 

  11. Jover E, Bayona JM (2002) J Chromatogr A 950:213–220

    Article  CAS  Google Scholar 

  12. Pérez-Ruzafa A, Navarro S, Barba A, Marcos C, Camara MA, Salas F, Gutierrez JM (2000) Mar Pollut Bull 40:140–151

    Article  Google Scholar 

  13. Dubey JK, Heberer T, Stan HJ (1997) J Chromatogr A 765:31–38

    Article  CAS  Google Scholar 

  14. de Luca G, Mura M (2000) Bolletino dei Chimici Igienisti 51:99–103 (in Italian)

    Google Scholar 

  15. Rankin T, Thermo Finnigan, http://wwwthermocom/eThermo/CMA/PDFs/Articles/articlesFile_1000001009513pdf (accessed in November 2006)

  16. Leathard DA, Shurlock BC (1970) Identification techniques in gas chromatography. Wiley, London, p 282

    Google Scholar 

  17. Oaks DM, Dimick KP, Hartmann H (1964) Anal Chem 36:1560

    Article  CAS  Google Scholar 

  18. Bicchi C, Damato A, Orlandin M (1994) J High Resolut Chromatogr 17:335–338

    Article  CAS  Google Scholar 

Download references

Acknowledgements

This work was supported by Spanish Ministry of Science and Technology project FP-2001-0883. One of us (A. Gómez-Gutiérrez) gratefully acknowledges the Catalan Government (Generalitat de Catalunya) for a Ph.D fellowship, and E. Jover acknowledges Spanish Ministry of Science and Technology for a Ph.D. fellowship. Finally, the authors wish to thank R. Mas for her technical assistance.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to E. Jover.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Jover, E., Gómez-Gutiérrez, A. & Bayona, J.M. Development and Application of the Detector-Response-Ratio Method of Identification for a Dual-Detection System. Application of GC with Electron-Capture and Nitrogen–Phosphorus Detection to the Determination of Pesticides in Aqueous Matrices. Chroma 66, 75–79 (2007). https://doi.org/10.1365/s10337-007-0270-2

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1365/s10337-007-0270-2

Keywords

Navigation