On-line liquid chromatographic trace enrichment and high-performance liquid chromatographic determination of diquat, paraquat and difenzoquat in water

IBANEZ, M
Call Number
PR 10722
Added Author
PICO, Y
MANES, J
Publication
Elsevier 1996
URL
Language
eng
Location Item Class Call Number Accession Number Copy Number Barcode Status eResource  
Special Collection - HQ
Photocopies-Reprints
PR 10722
PR10722
1
069605
Available
 
 
 
01913nam a2200325 a 4500
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vtls000095548
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20170830193800.0
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170714 1996                  000 0 eng d
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$a 201708301938 $b aida $y 201707140814 $z norizan
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$a PR 10722
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$a IBANEZ, M
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$a On-line liquid chromatographic trace enrichment and high-performance liquid chromatographic determination of diquat, paraquat and difenzoquat in water
260
$b Elsevier $c 1996
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$a In Journal of Chromatography A 1996 Vol 728 (1-2) March : 325-331
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$a For the trace-level determination of diquat, paraquat and difenzoquat in drinking and surface water, a fully automated method using on-line trace enrichment, LC separation and UV detection is described. An automatic sample preparation device (OSP-2, Merck) was employed as the sample preparation unit. The three herbicides were trapped from the flowing water sample by adsorption on a silica cartridge placed in a circular cartridge magazine, then the load cartridge was moved to the elution side. On the elution side, the herbicides were transferred to the analytical column by the mobile phase. Detection limits for the three herbicides below 20 ng/l were obtained after preconcentrating 200 ml of drinking water. The total analytical procedure was applied for the monitoring of the three herbicides in drinking and surface water.
541
$a PR10722
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$a LIQUID CHROMATOGRAPHY
650
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$a TRACE ENRICHMENT
650
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$a SOLID PHASE
650
0
$a PARAQUAT
650
0
$a DIFENZOQUAT
650
0
$a PESTICIDES
650
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$a PHOTOCOPIES--REPRINTS
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$a PICO, Y
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$a MANES, J
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$u https://doi.org/10.1016/0021-9673(95)00902-7
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Subject
LIQUID CHROMATOGRAPHY
TRACE ENRICHMENT
SOLID PHASE
PARAQUAT
DIFENZOQUAT
PESTICIDES
PHOTOCOPIES--REPRINTS
Summary
For the trace-level determination of diquat, paraquat and difenzoquat in drinking and surface water, a fully automated method using on-line trace enrichment, LC separation and UV detection is described. An automatic sample preparation device (OSP-2, Merck) was employed as the sample preparation unit. The three herbicides were trapped from the flowing water sample by adsorption on a silica cartridge placed in a circular cartridge magazine, then the load cartridge was moved to the elution side. On the elution side, the herbicides were transferred to the analytical column by the mobile phase. Detection limits for the three herbicides below 20 ng/l were obtained after preconcentrating 200 ml of drinking water. The total analytical procedure was applied for the monitoring of the three herbicides in drinking and surface water.
Notes
In Journal of Chromatography A 1996 Vol 728 (1-2) March : 325-331