TY - JOUR
T1 - Low pressure ion chromatography with a low cost paired emitter-detector diode based detector for the determination of alkaline earth metals in water samples
AU - Barron, Leon
AU - Nesterenko, Pavel N.
AU - Diamond, Dermot
AU - O'Toole, Martina
AU - Lau, King Tong
AU - Paull, Brett
N1 - Funding Information:
The authors wish to thank Enterprise Ireland and Science Foundation Ireland (SFI 03/IN3/1631) for provision of the necessary funding to carry out this project.
PY - 2006/9/1
Y1 - 2006/9/1
N2 - The use of a low pressure ion chromatograph based upon short (25 mm × 4.6 mm) surfactant coated monolithic columns and a low cost paired emitter-detector diode (PEDD) based detector, for the determination of alkaline earth metals in aqueous matrices is presented. The system was applied to the separation of magnesium, calcium, strontium and barium in less than 7 min using a 0.15 M KCl mobile phase at pH 3, with post-column reaction detection at 570 nm using o-cresolphthalein complexone. A comparison of the performance of the PEDD detector with a standard laboratory absorbance detector is shown, with limits of detection for magnesium and calcium using the low cost PEDD detector equal to 0.16 and 0.23 mg L-1, respectively. Finally, the developed system was used for the determination of calcium and magnesium in a commercial spring water sample.
AB - The use of a low pressure ion chromatograph based upon short (25 mm × 4.6 mm) surfactant coated monolithic columns and a low cost paired emitter-detector diode (PEDD) based detector, for the determination of alkaline earth metals in aqueous matrices is presented. The system was applied to the separation of magnesium, calcium, strontium and barium in less than 7 min using a 0.15 M KCl mobile phase at pH 3, with post-column reaction detection at 570 nm using o-cresolphthalein complexone. A comparison of the performance of the PEDD detector with a standard laboratory absorbance detector is shown, with limits of detection for magnesium and calcium using the low cost PEDD detector equal to 0.16 and 0.23 mg L-1, respectively. Finally, the developed system was used for the determination of calcium and magnesium in a commercial spring water sample.
KW - Alkaline earth metals
KW - Low pressure ion chromatography
KW - Paired emitter-detector diode detector
KW - Post-column reaction
UR - http://www.scopus.com/inward/record.url?scp=33747369155&partnerID=8YFLogxK
U2 - 10.1016/j.aca.2006.05.101
DO - 10.1016/j.aca.2006.05.101
M3 - Article
AN - SCOPUS:33747369155
SN - 0003-2670
VL - 577
SP - 32
EP - 37
JO - Analytica Chimica Acta
JF - Analytica Chimica Acta
IS - 1
ER -