Research output: Contribution to journal › Article › peer-review
Lead-selective electrodes based on liquid ion-exchangers. / Didina, S. E.; Mitnik, L. L.; Koshmina, N. V.; Grekovich, A. L.; Mikhelson, K. N.
In: Sensors and Actuators: B. Chemical, Vol. 19, No. 1-3, 04.1994, p. 396-399.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Lead-selective electrodes based on liquid ion-exchangers
AU - Didina, S. E.
AU - Mitnik, L. L.
AU - Koshmina, N. V.
AU - Grekovich, A. L.
AU - Mikhelson, K. N.
PY - 1994/4
Y1 - 1994/4
N2 - Lead-selective PVC membranes are presented. The membrane include the known cation-exchanger lead bis(i- butyldithiophosphate) (PbTP) and a new cation-exchanger diphenylmethyl-N-phenyl-hydroxamic acid (PMPHA). The electrodes of both types are Pb2+ responsive in Pb(NO3)2 solutions without Nernstian response to PbOH+ or PbNo3+. The working range is ppb 1.8-5.0 in the case of PbTP and pPb 2.3-5.3 if PMPHA was used as the ion-exchanger. The pH interference is 'anomalous' as is well known in the case of calcium-selective electrodes. The electrodes based on PMPHA provide selectivity to lead ions in the presence of Cu2+, HG2+, Hg2+ and Ag+.
AB - Lead-selective PVC membranes are presented. The membrane include the known cation-exchanger lead bis(i- butyldithiophosphate) (PbTP) and a new cation-exchanger diphenylmethyl-N-phenyl-hydroxamic acid (PMPHA). The electrodes of both types are Pb2+ responsive in Pb(NO3)2 solutions without Nernstian response to PbOH+ or PbNo3+. The working range is ppb 1.8-5.0 in the case of PbTP and pPb 2.3-5.3 if PMPHA was used as the ion-exchanger. The pH interference is 'anomalous' as is well known in the case of calcium-selective electrodes. The electrodes based on PMPHA provide selectivity to lead ions in the presence of Cu2+, HG2+, Hg2+ and Ag+.
UR - http://www.scopus.com/inward/record.url?scp=0028407821&partnerID=8YFLogxK
U2 - 10.1016/0925-4005(93)01009-S
DO - 10.1016/0925-4005(93)01009-S
M3 - Article
AN - SCOPUS:0028407821
VL - 19
SP - 396
EP - 399
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
SN - 0925-4005
IS - 1-3
ER -
ID: 92361194