Single column ion chromatography. I. Analysis of inorganic anions in soils

Conference · · Soil Sci. Soc. Am. J.; (United States)

OSTI ID:6116213

Nieto, K F; Frankenberger, Jr, W T

Single column ion chromatography (SCIC) is a rapid, sensitive, and precise method which can simultaneously detect Cl , NO2 , NO3 , SO3S , and SO4S in soils in less than 10 min. In addition, Br , I , and ClO4 can be separated within 15 min. The method can be carried out on a commercially available HPLC instrument, using a 500 L aliquot of soil extract and an eluent stream of 4 mM phthalic acid (pH 4.5). The inorganic anions are separated on a low-capacity anion exchange column and quantified by conductimetric detection. Results obtained by the SCIC method agree closely with those obtained by other analytical methods. Using a 500 L loop, SCIC detection limits, expressed in mg/L of soil extract, were: Cl , Br , NO3 -N, and SO4S -S (0.025), ClO4 and I (0.5); NO2 -N and SO3S -S (1.0). This method proved to be reproducible as evident by the low CV values ranging from 3.6 to 8.4%. Notable advantages of this technique include: simplicity, application to a wide variety of inorganic anions, simultaneous determination of ions in soil extracts and inherent sensitivity.

• Research Organization: Univ. of California, Riverside
• OSTI ID: 6116213
• Journal Information: Soil Sci. Soc. Am. J.; (United States), Vol. 49:3; Conference: Meeting of the Soil Science Society of America, Anaheim, CA, USA, 1 Dec 1982
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
BROMINE
MEASURING METHODS
CHLORINE
IODINE
ION EXCHANGE CHROMATOGRAPHY
PERFORMANCE TESTING
NITRATES
NITROGEN DIOXIDE
SULFATES
CHEMICAL COMPOSITION
SOILS
CHALCOGENIDES
CHROMATOGRAPHY
ELEMENTS
HALOGENS
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SULFUR COMPOUNDS
TESTING
510100* - Environment
Terrestrial- Basic Studies- (-1989)
510200 - Environment
Terrestrial- Chemicals Monitoring & Transport- (-1989)