Analytical Methods for Ruthenium

Thiers, Ralph E.; Graydon, W. F.; Beamish, F. E.

doi:10.1021/ac60021a013

Cited by 61 publications

(13 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recent statements by Flagg (6) that results on semimicro quantities tend to be low by as much as 10% have never, so far as the authors are aware, been supported by experimental evidence. Such statements cannot be reconciled with the observations of Thiers, Graydon, and Beamish (11), made with the aid of radioactive ruthenium, that, within the prescribed acidity range, precipitation of 6 mg. of ruthenium was complete to less than 0.6 microgram.…”

mentioning

confidence: 81%

“…The colorimetric procedure was found suitable for determining ruthenium when isolated by distillation. The apparatus used was patterned after that of Thiers, Graydon, and Beamish (11) or that of DeFord (5). The former apparatus was employed for distillations in which ruthenium tetroxide wras produced either by chlorine and sodium hydroxide, or sodium brómate and sulfuric acid, and received in 3% hydrogen peroxide.…”

Section: Distillationsmentioning

confidence: 99%

See 1 more Smart Citation

Colorimetric Determination of Ruthenium with p-Nitrosodimethylaniline

Currah¹,

Fischel²,

Beamish³

1952

Anal. Chem.

Self Cite

View full text Add to dashboard Cite

The growth in importance of the chemistry of ruthenium has brought with it demands for methods of determining very minute amounts of the metal. From several organic compounds tested for color formation with ruthenium salts, p-nitrosodimethylaniline has been selected for more detailed study. This reagent in aqueous solution will develop a bottle-green color when warmed with a solution of ruthenium chloride or bromide buffered to pH 4.1. Maximum absorption occurs at 610 µ when this solution is compared with a reagent blank.Ruthenium may be separated from the other platinum metals by conventional distillation procedures and then determined in the distillate.The recommended procedure is simple, requires little of the operator's time, and is more sensitive than other methods in the literature. THE colorimetric determination of ruthenium has been the subject of several investigations in recent years. Breckenridge and Singer (4) applied 5-hydroxyquinoline-8-carboxylic acid; Ayres and Young (S) and DeFord (5) independently studied thiourea as a colorimetric reagent; Ayres and Young (3) also examined rubeanic acid (dithio-oxamide) for this purpose. Sandell (10) discussed these and other methods. Marshall and Rickard (7) described a procedure in which the color of potassium ruthenate was made the basis of a colorimetric determination but this was applicable to higher concentrations than any of the foregoing methods.

show abstract

mentioning

confidence: 81%

Section: Distillationsmentioning

confidence: 99%

Colorimetric Determination of Ruthenium with p-Nitrosodimethylaniline

Currah¹,

Fischel²,

Beamish³

1952

Anal. Chem.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Serious losses of ruthenium during the FA procedure were observed. 24 Significant retention of the metal by the slag and the cupel occurred. Losses of osmium due to retention by the slag or the volatilization of OsO4 formed during the cupellation were also reported.…”

Section: Fire Assaymentioning

confidence: 98%

Sample Digestion Methods for the Determination of Traces of Precious Metals by Spectrometric Techniques

Balcerzak

2002

ANAL. SCI.

168

View full text Add to dashboard Cite

Recent advances in digestion methods used in the analysis of precious metal samples by spectrometric techniques are reviewed. The applicability of a fire assay, a wet acid treatment, chlorination and alkaline oxidizing fusion to a quantitative recovery of metals from various materials is discussed. Data on the precious metal contents obtained by using particular digestion methods as well as UV-VIS spectrophotometry, atomic absorption spectrometry, atomic emission spectrometry and inductively coupled plasma mass spectrometry in the examination of various samples are tabulated.

show abstract

“…E. coli B was grown in fernbach culture flasks acid-cleaned according to the method of Thiers [7]. The growth medium was the glycerol salts medium of Anderson [8] with minor modifications.…”

Section: Organisms and Growth Conditionsmentioning

confidence: 99%

The effect of iron deficiency on in vitro protein synthesis in Escherichia coli B

Iorio¹

1981

FEMS Microbiology Letters

View full text Add to dashboard Cite

Analytical Methods for Ruthenium

Cited by 61 publications

References 23 publications

Colorimetric Determination of Ruthenium with p-Nitrosodimethylaniline

Colorimetric Determination of Ruthenium with p-Nitrosodimethylaniline

Sample Digestion Methods for the Determination of Traces of Precious Metals by Spectrometric Techniques

The effect of iron deficiency on in vitro protein synthesis in Escherichia coli B

Contact Info

Product

Resources

About