TY - JOUR
T1 - Sensitivity enhancement in ICP emission spectrometry with microcolumn preconcentration and ultrasonic nebulisation
AU - Worrasettapong, Watcharapong
AU - Ma, Renli
AU - Cox, Alan G.
AU - McLeod, Cameron W.
N1 - Funding Information:
The authors gratefully acknowledge the financial support of RIT, Thailand (to W.W.) and are thankful for the technical assistance of both Spectro Analytical Instruments and Cetac Technologies.
PY - 2002/12
Y1 - 2002/12
N2 - To improve the measurement capability of ICP emission spectrometry, microcolumn preconcentration using an iminodiacetate chelating resin (Muromac A-1) has been combined with ultrasonic nebulisation for determination of ultratrace elements (V, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb and U) in natural waters including seawaters. Trace element deposition was achieved at pH 5 and elution was effected by injection of nitric acid (250 μl, 2.0 M). Sensitivity enhancement factors between 26 and 44 were achieved with on-line preconcentration (sample volume of 10 ml) and detection limits were improved by up to two orders of magnitude relative to conventional pneumatic nebulisation of original water samples. The method was successfully applied to mineral, rain and sea water samples.
AB - To improve the measurement capability of ICP emission spectrometry, microcolumn preconcentration using an iminodiacetate chelating resin (Muromac A-1) has been combined with ultrasonic nebulisation for determination of ultratrace elements (V, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb and U) in natural waters including seawaters. Trace element deposition was achieved at pH 5 and elution was effected by injection of nitric acid (250 μl, 2.0 M). Sensitivity enhancement factors between 26 and 44 were achieved with on-line preconcentration (sample volume of 10 ml) and detection limits were improved by up to two orders of magnitude relative to conventional pneumatic nebulisation of original water samples. The method was successfully applied to mineral, rain and sea water samples.
KW - Axial viewing
KW - Flow injection
KW - ICP emission spectrometry
KW - Microcolumn preconcentration
KW - Natural waters
KW - Ultrasonic nebulisation
UR - http://www.scopus.com/inward/record.url?scp=0036986580&partnerID=8YFLogxK
U2 - 10.1080/0306731021000102293
DO - 10.1080/0306731021000102293
M3 - Article
AN - SCOPUS:0036986580
SN - 0306-7319
VL - 82
SP - 825
EP - 834
JO - International Journal of Environmental Analytical Chemistry
JF - International Journal of Environmental Analytical Chemistry
IS - 11-12
ER -
