Nitroso-R Salt Spectrophotometric Determination of Cobalt in Copper, Nickel and Manganese Ores

MENG Yadong; SUN Luoxin; SHANG Baozhong; FU Xiaoqiang

2010 Vol. 29, No. 2

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Article navigation > Rock and Mineral Analysis > 2010 > 29(2): 190-192

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MENG Yadong, SUN Luoxin, SHANG Baozhong, FU Xiaoqiang. Nitroso-R Salt Spectrophotometric Determination of Cobalt in Copper, Nickel and Manganese Ores[J]. Rock and Mineral Analysis, 2010, 29(2): 190-192.

Citation:

MENG Yadong, SUN Luoxin, SHANG Baozhong, FU Xiaoqiang. Nitroso-R Salt Spectrophotometric Determination of Cobalt in Copper, Nickel and Manganese Ores[J]. Rock and Mineral Analysis, 2010, 29(2): 190-192.

Nitroso-R Salt Spectrophotometric Determination of Cobalt in Copper, Nickel and Manganese Ores

1.
Geological Survey of Henan Province
2.
Geological Survey of Henan Province
3.
Geological Survey of Henan Province
4.
Geological Survey of Henan Province

Received Date: 12 July 2009

Revised Date: 19 October 2009

Publish Date: 28 April 2010

Abstract

Abstract

The reaction that cobalt reacts with nitroso-R salt in pH 5.5～7 acetic acid solution and forms a red soluble complex was used in spectrophotometric determination of cobalt. The sample pretreatment and determination conditions, such as sample digestion method, chromogenic agent concentration and dosage, boiling time and storage time of the sample solution, etc were tested and optimized. The interference from elements of Fe, Cu, Ni and Mn on the determination of Co was also studied. The method has been applied to the determination of Co in Cu, Ni and Mn ores with satisfactory results.
- cobalt /
- nitroso-R