Flow-injection spectrophotometric determination of micro amounts of sulfate ion in surface- and sea-water samples with a barium chromate reaction column
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In this paper, a rapid and simple flow-injection method using a reaction column packed with barium chromate powder is described for the determination of micro amounts of sulfate ion in surface and sea-water samples.Abstract:
A rapid and simple flow-injection method using a reaction column packed with barium chromate powder is described for the determination of micro amounts of sulfate ion in surface- and sea-water samples. An aqueous solution containing 4.5mM sodium acetate and 4% ethanol was used as a carrier solution at a flow rate of 0.8ml/min. The absorbance of the chromate ion (which corresponds to the sulfate ion concentration) in the carrier solution from the reaction column was measured using a photometric detector at 370nm. Interference from some cations was eliminated by the use of a cation-exchange resin column installed in front of the reaction column; interference from some anions was reduced by using the carrier solution mentioned above. The concentration range from 0.5 to 5ppm of the sulfate ion in practical water samples can be determined by the proposed method with good reproducibility.read more
Citations
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Determination of trace inorganic anions in seawater samples by ion chromatography using silica columns modified with cetyltrimethylammonium ion
TL;DR: Conventional silica columns dynamically modified with cetyltrimethylammonium ions were evaluated for the determination of UV-absorbing bromide, nitrate, and nitrite in seawater samples.
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Application of flowing-stream techniques to water analysis Part II. General quality parameters and anionic compounds: halogenated, sulphur and metalloid species.
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Flow injection spectrophotometry coupled with a crushed barium sulfate reactor column for the determination of sulfate ion in water samples
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Structural alterations of humic acid fractions in a steel slag-compost fertilizer during fertilization. Analysis by pyrolysis/methylation-gas chromatography/mass spectrometry
Naotaka Fujisawa,Masami Fukushima,Mitsuo Yamamoto,Hisanori Iwai,Takeshi Komai,Yoshishige Kawabe,Dan Liu +6 more
TL;DR: In this paper, the structural features of humic acids (HAs) in a steel slag-compost fertilizer for supplying soluble Fe(II) to barren ground in coastal areas were monitored during a 6-month period of fertilization.
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Determination of sulphate in water by flow-injection analysis with electrode-separated piezoelectric quartz crystal sensor
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References
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Flow Injection Analysis
J. Růžička,J.W.B. Stewart +1 more
TL;DR: In this paper, the effect of sample volume, tube length, tube diameter, peak height and sampling rate on the determination of phosphorus in acidic plant digests was investigated, and optimal conditions for the flow injection method were described.
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Flow Injection Analysis
TL;DR: This paper presents a meta-review of the Flow--Injection Literature and discusses theoretical Aspects of FIA Techniques, components of An FIA Apparatus, and Experimental Techniques and FIA Exercises.