By Prof. Dr. H.-J. Stan (auth.), Prof. Dr. H.-J. Stan, Dir. u. Prof. Dr. W. Ebing i.R., Prof. Dr. H. Börner, Prof. Dr. D. Martin, Dr. V. Sjut, Prof. Dr. J. Stetter (eds.)
Public difficulty is being more and more directed to insecticides and their residues in flooring and floor waters. Water - one of many must haves of existence - needs to be stored fresh for guy and the surroundings. half I and II of this booklet describe in an authoritative manner all points of contemporary research of insecticides in water by way of the resultant use of hyphenated ideas like GC-AED or HPLC-MS.
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Additional info for Analysis of Pesticides in Ground and Surface Water I: Progress in Basic Multi-Residue Methods
In earlier work, triazines  and phenoxy acid herbicides  were selectively extracted by putting ion exchange sorbent in series after Carbopak B. The solutes were first trapped in the Carbopak B. On elution, they were selectively adsorbed on the ion exchange sorbent. Mangani et al.  obtained good recoveries of organochlorine insecticides and some herbicides from 11 of water with 50 mg of Carbopak B at the level of 5 ng 1- 1. 3 Macroreticular Resins The XAD resins have long been used for the extraction of a variety of pesticides.
The previous1y mentioned 1arge sca1e LLE extractor, GLSE , was used for the extraction of 50 1 sampies during monitoring cruises in a shipboard 1aboratory . High1y hydrophobie compounds were extracted on site in a continuous LLE device from hundreds of Extraction and Cleanup 43 liters of river or sea water into 100-300 ml of apolar solvent . It was found preferable to XAD-2 extraction for some compounds in the presence of DOM . 3-1 mm. The column was replaced every 12 h. Strachan and Huneault  used cartridges with XAD-2 for in situ extraction of pesticides from rain water.
Mangani et al.  obtained good recoveries of organochlorine insecticides and some herbicides from 11 of water with 50 mg of Carbopak B at the level of 5 ng 1- 1. 3 Macroreticular Resins The XAD resins have long been used for the extraction of a variety of pesticides. XAD-l, XAD-2 and XAD-4 are styrene-divinylbenzene copolymers with a hydrophobie character. XAD-7 and XAD-8 are acrylic ester resins with higher affinity for polar solutes. XAD resins are known to release inteferences and need pretreatment by extensive Soxhlet extraction [88, 89], or through preconditioning of the packed column .
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