Rapid coprecipitation technique using yttrium hydroxide for the preconcentration and separation of trace elements in saline water prior to their ICP-AES determination.
Yttrium hydroxide quantitatively coprecipitated Be(II), Ti(IV), Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II), Zn(II), Cd(II), and Pb(II) at pH 9.6 - 10.0 for seawater and pH 10.5 - 11.4 for a table-salt solution. The coprecipitated elements could be determined by inductively coupled plasma atomic emission spectrometry; yttrium was used as an internal standard element. The detection limits ranged from 0.001(6) microg (Mn(II)) to 0.22 microg (Zn(II)) in 100 mL of sample solutions. The operation time required to separate 11 elements was approximately 30 min.
Kagaya
Shigehiro
S
Graduate School of Science and Engineering for Research, University of Toyama, Gofuku, Toyama, Japan. kagaya@eng.u-toyama.ac.jp
Miwa
Satoshi
S
Mizuno
Toshiyuki
T
Tohda
Koji
K
D002138:Calibration; D011232:Chemical Precipitation; D004784:Environmental Monitoring / Q000295:instrumentation / Q000379:methods; D007202:Indicators and Reagents; D012015:Reference Standards; D012623:Seawater / Q000032:analysis*; D012680:Sensitivity and Specificity; D013054:Spectrophotometry, Atomic; D013997:Time Factors; D014131:Trace Elements / Q000302:isolation & purification*; D015019:Yttrium / Q000737:chemistry*
D007202:Indicators and Reagents; D014131:Trace Elements; D015019:Yttrium