Extraction-flame photometric determination of boron

Agazzi, E. J.

doi:10.1021/ac60246a011

Cited by 45 publications

(7 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Boron may be extracted as one of its organic complexes such as (a) the boron-2-ethyl-1,3-hexanediol complex of B into chloroform or benzene (69,70) ions that were extracted with liquid ion exchanger (Aliquat 336, tricaprylmethylammonium chloride) in xylene for ICP-OES determination. The separation may be performed on line and the separated phase is introduced directly into an ICP using pulse nebulization (72).…”

Section: Solvent Extractionmentioning

confidence: 99%

Boron Determination—A Review of Analytical Methods

Sah

Brown

1997

Microchemical Journal

210

141

View full text Add to dashboard Cite

Section: Solvent Extractionmentioning

confidence: 99%

Boron Determination—A Review of Analytical Methods

Sah

Brown

1997

Microchemical Journal

210

141

View full text Add to dashboard Cite

“…Extraction Solution. Several organic systems for extracting boron from aqueous solution have been described by Agazzi (1967), Dean (1960), and Maeck et al (1963). A 5% solution of 2-ethyl-l ,3-hexanediol in chloroform proved most effective for use with atomic absorption.…”

Section: Methodsmentioning

confidence: 99%

“…Several organic systems for extracting boron from aqueous solution have been described by Agazzi (1967), Dean (1960), and Maeck et ul. (1963).…”

mentioning

confidence: 99%

Determination of boron in fertilizers by atomic absorption spectrophotometry

Weger¹,

Hossner²,

Ferrara³

1969

J. Agric. Food Chem.

View full text Add to dashboard Cite

A procedure for the determination of small amounts increases the sensitivity of the boron determination. of boron in fertilizers and related compounds byThe detection limit is 1 p.p.m. boron with a good atomic absorption spectrophotometry is described.signal-to-noise ratio. The working concentrationThe boron is complexed and extracted from aqueous range in solution is 0 to 100 p.p.m. boron with a acid solution with 2-ethyl-1,3-hexanediol in chlorospsitivity of 1.5 p.p.m. per 1 % absorption at 2497.7form. This separation decreases the amount of A. Interfering ions were considered and their effects interferences common to atomic absorption and were found to be negligible. everal general methods for the determination of boron described by Boltz et af. (1958) and Nemodruk and S Karalova (1 965) were investigated by this laboratory.More specific procedures as those of Jackson (1958), Borland et af. (1967), and the Association of Official Agricultural Chemists (1965) were also explored. None of the above methods, however, proved as versatile and reproducible for our purposes as the atomic absorption method describedbelow. An earlier form of a hollow-cathode boron source lamp was described by the Perkin-Elmer Corporation, but this lamp did not prove satisfactory for concentrations of boron less than 50 p.p.m. Recently, however, Perkin-Elmer introduced a n improved hollow-cathode boron lamp which produced a more stable signal. This boron tube allowed a detection limit of 10 p.p.m. at a 1OX scale expansion in aqueous solutions. Because of possible refractive complexes similar to those described by Perkin-Elmer (1966), and low boron content of our compounds, we found it necessary to employ a n organic solvent system to increase sensitivity and decrease refractive interferences. This paper describes the procedures for preparing and analyzing fertilizers which contain varying amounts of boron. EXPERIMENTAL APPARATUS AND OPERATING CONDITIONS. The PerkinElmer Atomic Absorption, Model 303, Spectrophotometer was used for all tests. The shielded form of the hollowcathode source lamp (Perkin-Elmer Corp. lamp number 303-6015) for boron was employed at 30 mA of source current.A wavelength setting of approximately 2500 A in the ultraviolet region of the spectrum and a slit setting of four were used. A 2-inch nitrous oxide burner head was mounted in the conventional assembly. Burner height and alignment to the signal beam were adjusted to give maximum absorption with a 100-p.p.m. boron standard solution. Optimum sensitivity was obtained with a nitrous oxide flow of 21 liters per minute and a n acetylene flow of approximately 12 liters per Present address,

show abstract

“…, solvent extraction or solvent extraction based liquid membrane appears to be a potential technique for the treatment of water of natural origin which is showing pH near 7. Solvent extraction of boron using 1,3 diols has been reported in different analytical and industrial methods of boron recovery . The relative extraction efficiency of different diols for boron depends on their molecular and structural geometry .…”

Section: Introductionmentioning

confidence: 99%

Effect of phase modifiers on boron removal by solvent extraction using 1,3 diolic compounds

Fortuny

Coll

Kedari

et al. 2014

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

RESULTS: 28Compared to other modifiers studied, decanol gives better stability to diolic molecules 29 in the Kerosene phase and exhibit lesser negative effect on the extraction of boron. Next 30 to decanol, the low viscous 2,6-dimethyl-4-heptanone can be used as solvent modifier. 31In the successive extraction studies, 2-butyl-2-ethyl-1,3-propanediol (BEPD) showed 32 better stability among the diols studied in presence of decanol in the organic phase 33 CONCLUSION: 34Quantitative removal of boron could be achieved from industrial waste solutions such as 35 a spent phosphate passivation bath and a cutting fluid, using 0.6 M BEPD and 0.6 M 36 2,2,4-trimethyl-1,3-pentanediol (TMPD) in 25% decanol/Kerosene organic phase. 37 38

show abstract

Extraction-flame photometric determination of boron

Cited by 45 publications

References 2 publications

Boron Determination—A Review of Analytical Methods

Boron Determination—A Review of Analytical Methods

Determination of boron in fertilizers by atomic absorption spectrophotometry

Effect of phase modifiers on boron removal by solvent extraction using 1,3 diolic compounds

Contact Info

Product

Resources

About