TY - JOUR
T1 - Flow-through pH-ISFET as detector in the determination of ammonia
AU - Alegret, S.
AU - Alonso, J.
AU - Bartroli, J.
AU - del Valle, M.
AU - Jaffrezic-Renault, N.
AU - Duvault-Herrera, Y.
PY - 1990/1/1
Y1 - 1990/1/1
N2 - A simple flow-injection metod for the determination of ammonium ions in water, based on a flow-through pH-ISFET, is described. Ammonium is converted to ammonia, which diffuses through a microporous hydrophic membrane into an ammonium chloride recipient stream, forming a pH buffer which is monitored by the semiconductor detector. The linear working range extends from 0.1 to 10 mmol l -1 with a relative standard deviation of ca. 1% at the 0.7 mmol l -1 level. © 1990.
AB - A simple flow-injection metod for the determination of ammonium ions in water, based on a flow-through pH-ISFET, is described. Ammonium is converted to ammonia, which diffuses through a microporous hydrophic membrane into an ammonium chloride recipient stream, forming a pH buffer which is monitored by the semiconductor detector. The linear working range extends from 0.1 to 10 mmol l -1 with a relative standard deviation of ca. 1% at the 0.7 mmol l -1 level. © 1990.
U2 - 10.1016/S0003-2670(00)86396-5
DO - 10.1016/S0003-2670(00)86396-5
M3 - Article
VL - 231
SP - 53
EP - 58
IS - C
ER -