University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Website: @unf

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Classification: Environmental -> water -> moor

Citations 1

"Field Sampling Technique For The"
J. Anal. At. Spectrom. 1995 Volume 10, Issue 3 Pages 281-285
Ben Fairman, Alfredo Sanz-Medel and Phil Jones

Abstract: Samples that contained 'fast reactive' Al (FR-Al), 0.01 M acetate buffer of pH 5 and 0.005 M 8-hydroxyquinoline (HQ) in acetate buffer of pH 5 were pumped simultaneously through a sampling manifold (illustrated). The sample and buffer were subsequently mixed in a reactor coil before the addition of the 0.005 M HQ and the combined streams passed through (2-5 min) a mini-column (5 cm x 1.5 mm i.d.) packed with Amberlite XAD-2 non-ionic resin. Retained Al was eluted with 330 µL 1 M HCl and analyzed by ICP-AES and ICP-MS (operating conditions tabulated). With ICP-AES the RSD was 8% for 2 mL samples of standard solutions that contained 100 µg/l of Al. The detection limit was 10 µg/l. FR-Al levels (40.6 ± 3.2 µg/l) in tap water (total Al 229 ± 10 µg/l) of pH 8.9 were in good agreement with HPLC analyzes at pH 3 (Jones, Int. J. Environ. Anal. Chem., 1991, 44, 1) for Al(III) (43.7 ± 2.1 µg/l). Problems were however encountered with moorland waters of pH 5.4-6.7 that contained less total Al and Al(III), due to the poor sensitivity levels of the ICP-AES detection system (discussed). Data from field sampling trials measured by ICP-MS were in good agreement with Al(III) levels (tabulated) measured by HPLC. The RSD was 8% for 2 mL samples of standard solutions that contained 100 µg/l of Al with a detection limit of 1.8 µg/l.
Aluminum(III) Aluminum, total Mass spectrometry Spectrophotometry Speciation 8-Hydroxyquinoline Amberlite Column