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diacab3.txt
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1999-09-02
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<TITLE>Dialog-Chemical Eng.Biotechnol.Abst.</A> [<I>Dialog-Chemical Eng.Biotechnol.Abst.</I>] </TITLE><PRE>
1/5/19
AZ- 123301
AX- <CEBA Accession No.> 22-07-009014|
DT- Journal|
TI- Pesticide residue analysis in food with CGC-study of long-term
stability by the use of different injection techniques|
AU- Mueller, H.-M.^Stan, H.-J.|
CS- TU Berlin|
CS- Fed. Rep. Germany|
JN- JOURNAL OF HIGH RESOLUTION CHROMATOGR.A. CHROM. COMUNI.(HEIDELBERG) bis
DEZ 1988|
JN- <VO> 13|
JN- <IS> 10|
JN- <PG> 697-701|
CD- HCJCDB|
SN- 03447138|
PD- 1990|
PD- 900000|
LA- English|
AB- A spinach sample was spiked with the sulfur-containing pesticides
azinphos-ethyl, dimethoate, methiocarb, ethiofencarb, and tri-allate.
The long-term stability of gas chromatographic responses to pesticides
in the food sample was investigated using hot-splitless injection,
programmed temperature vaporizing (PTV)-injection, and on-column
injection. The pesticides were analyzed by sulfur-specific flame
photometric detection which did not respond to food matrix components.
Starting with a clean and freshly deactivated injector the first
injection of a food sample resulted in chromatograms showing increased
peak areas for all pesticides in relation to the internal standard
tri-allate. Highest long-term stability was found with PTV-injection,
and thermolabile carbamates were best analyzed by on-column injection.
(Stock)|
DE- en^analysis^sampling^CAPILLARY GAS CHROMATOGRAPHY|
SH- Analysis and Testing Materials|
SC- 15|
XR- Technocommercial Notes|
XR- 22|
XR- Safety|
XR- 10|
DN- Analysis of specific products |
DC- 222|
DN- Foodstuffs, fats, proteins, carbohydrates |
DC- 4664|
DN- Environmental chemicals|
DC- 357||
</PRE>