TY - JOUR
T1 - Voltammetric Determination of Aclonifen at a Silver Amalgam Electrode in Drinking and River Water
AU - Novotný, Vít
AU - Barek, Jiří
PY - 2017/6/27
Y1 - 2017/6/27
N2 - A method for the determination of pesticide Aclonifen (AC) in drinking and river water by differential pulse voltammetry (DPV) on a meniscus modified silver solid amalgam electrode (m-AgSAE) using solid phase extraction (SPE) as a cleanup and preconcentration procedure is described. The limit of detection (LOD) for direct DPV determination of AC in deionized water is 2.7·10-8 mol·dm-3. LOD for DPV determination of AC in tap water after SPE is 1.6·10-10 mol·dm-3, the recovery being 55%. LOD for the determination of AC in Vltava river water is 1.9·10-9 mol·dm-3, the recovery being 65%. Humic acids interfere with the determination in river water; this problem can be resolved by adjusting the pH of the extracted sample to 6. The advantages of this approach are high sensitivity, low LOD, quick and easy sample preparation and fast determination.
AB - A method for the determination of pesticide Aclonifen (AC) in drinking and river water by differential pulse voltammetry (DPV) on a meniscus modified silver solid amalgam electrode (m-AgSAE) using solid phase extraction (SPE) as a cleanup and preconcentration procedure is described. The limit of detection (LOD) for direct DPV determination of AC in deionized water is 2.7·10-8 mol·dm-3. LOD for DPV determination of AC in tap water after SPE is 1.6·10-10 mol·dm-3, the recovery being 55%. LOD for the determination of AC in Vltava river water is 1.9·10-9 mol·dm-3, the recovery being 65%. Humic acids interfere with the determination in river water; this problem can be resolved by adjusting the pH of the extracted sample to 6. The advantages of this approach are high sensitivity, low LOD, quick and easy sample preparation and fast determination.
KW - aclonifen
KW - drinking water
KW - river water
KW - silver solid amalgam electrode
KW - solid phase extraction
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U2 - 10.1515/eces-2017-0019
DO - 10.1515/eces-2017-0019
M3 - Article
AN - SCOPUS:85024867362
VL - 24
SP - 277
EP - 284
JO - Ecological Chemistry and Engineering S
JF - Ecological Chemistry and Engineering S
SN - 1898-6196
IS - 2
ER -