✦ LIBER ✦

Determination of sulphate in natural waters and industrial effluents by sequential injection analysis

✍ Scribed by J.F. van Staden; R.E. Taljaard

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 940 KB
Volume: 331
Category: Article
ISSN: 0003-2670
DOI: 10.1016/0003-2670(96)00139-0

No coin nor oath required. For personal study only.

✦ Synopsis

A sequential injection analysis system for the determination of sulphate in natural waters and industrial effluents has been developed. The method is based on the turbidimetric determination of sulphate using barium chloride as reagent and measuring the absorbance of the formed suspension spectrophotometrically at 540nm. The proposed system is fully computerised and is able to monitor sulphate in samples at a frequency of 26 samples per hour with a relative standard deviation of better than 3.9%. The calibration graph is linear between 10 and 200mgl-'.

📜 SIMILAR VOLUMES

Turbidimetric determination of sulphate

Turbidimetric determination of sulphate in plant digests and natural waters by flow injection analysis with alternating streams

✍ F.J. Krug; E.A.G. Zagatto; B.F. Reis; O. Bahia F°; O. Jacintho; S.S. Jørgensen 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 646 KB

An improved flow injection system with alternating streams of reagents is described for the turbidimetric determination of sulphate. Samples are injected into an inert carrier stream which is mixed with barium chloride to form a barium sulphate suspension. The range of the method can be extended to

Simultaneous determination of chloride a

Simultaneous determination of chloride and fluoride ions in waters by sequential injection analysis

✍ Jesús Alpízar; Antonio Crespí; Andreu Cladera; Rafael Forteza; Víctor Cerdà 📂 Article 📅 1996 🏛 John Wiley and Sons 🌐 English ⚖ 464 KB

Turbidimetric determination of sulphate

Turbidimetric determination of sulphate in waters employing flow injection and lead sulphate formation

✍ Ricardo Erthal Santelli; Paulo Roberto Salgado Lopes; Regina Célia Leme Santelli 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 394 KB

An analytical flow-injection procedure based on PbS04 colloidal formation is proposed as a turbidimetric determination of sulphate in natural waters. Ethanol-water was used as a medium in order to improve the sensibility of the method. Both chemical and flow variables as well as interfering species

Determination of calcium in water, urine

Determination of calcium in water, urine and pharmaceutical samples by sequential injection analysis

✍ J.F. van Staden; R.E. Taljaard 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 1011 KB

A sequential injection analysis system for the determination of calcium in water, urine and pharmaceutical samples is proposed. The method is based on the fast complexation reaction between cresolphthalein complexone and calcium with spectrophotometric detection. Baseline shift due to a background o

Spectrophotometric determination of calc

Spectrophotometric determination of calcium in paper machine white water by sequential injection analysis

✍ Johan Nyman; Ari Ivaska 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 639 KB

A sequential injection analysis method is developed for the determination of calcium in white water of a paper machine. The determination is based bn the formation of a coloured complex between Ca\*+ and o-cresolphthalein complexone, which is monitored spectrophotometrically. Parameters of the met

Amperometric techniques in flow-injectio

Amperometric techniques in flow-injection analysis: determination of magnesium in sera and natural waters

✍ Alison J. Downard; Joanne B. Hart; H.Kipton J. Powell; Shuanghua Xu 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 712 KB

Magnesmm was determined m a flow-mqectlon system by formatlon of the magnesmm-Enochrome Black T (EBT) complex at pH 115 (5% 1,Zdlammoethane m 0 1 M KCl) and amperometrlc measurement of the excess of EBT at +0 175 V on a glassy carbon electrode From modelhng calculations, pH and concentrations of EBT