𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Isolation and concentration of organophosphorus pesticides from water using a c18 reversed phase

✍ Scribed by J.Mañes Vinuesa; J.C.Moltó Cortés; C.Igualada Cañas; G.Font Pérez

Publisher
Elsevier Science
Year
1989
Tongue
English
Weight
232 KB
Volume
472
Category
Article
ISSN
1873-3778

No coin nor oath required. For personal study only.

✦ Synopsis

A simple, rapid and effective method for the extraction and enrichment of organophosphorus pesticides based on the use of Sep-Pak C, a cartridges was studied as alternative method to those based on extraction with organic solvents . The influence of the elution solvent, pH, salinity and volume of water filtered was studied for ten organophosphorus pesticides . The pesticides were determined by gas chromatography with a BP-I capillary column and a thermionic detector . Recoveries at the 100 and 200 ng/l spiking levels were greater than 85%, except for disulfoton .

📜 SIMILAR VOLUMES

C18 reversed-phase trace enrichment of s
C18 reversed-phase trace enrichment of short- and long-chain (C2C8C20) fatty acids from dilute aqueous solutions and sea water
✍ Janusz Pempkowiak 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 702 KB

A method is presented for the quantitative determination of aliphatic carboxylic (fatty) acids in dilute aqueous solutions. C,, reversed-phase trace enrichment allows for recoveries ranging from 35 % for acetic acid to 100 y0 for heptanoic and higher acids. The influence of the flow-rate, the matrix

Selective extraction of organochlorine a
Selective extraction of organochlorine and organophosphorus pesticides using a combined solid phase extraction—supercritical fluid extraction approach
✍ I.J. Barnabas; J.R. Dean; S.M. Hitchen; S.P. Owen 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 548 KB

Supercritical fluid extraction WE) of pesticides has been investigated for the possibility of selective extraction between organochlorine (OCPs) and organophosphorus (OPPs) compounds. Three OCPs and OPPs were trapped onto a C,, EmporeTM extraction disk prior to WE with CO, only and methanol-modified