Determination of aluminium, calcium, iron and magnesium in sewages and sewage effluent by a rapid electrothermal atomic-absorption spectroscopic method

The Analyst ◽  
1979 ◽  
Vol 104 (1242) ◽  
pp. 831 ◽  
Author(s):  
M. J. T. Carrondo ◽  
J. N. Lester ◽  
R. Perry
Keyword(s):  
Atomic Absorption ◽  
Spectroscopic Method ◽  
Sewage Effluent ◽  
Calcium Iron

Collaborative Study on Ashing: 1969

1970 ◽  
Vol 53 (5) ◽  
pp. 926-927
Author(s):  
Joseph Kowalczuk
Keyword(s):  
Atomic Absorption ◽  
Collaborative Study ◽  
Atomic Absorption Determination ◽  
Absorption Determination ◽  
Relative Standard ◽  
Dry Ashing ◽  
Standard Deviations ◽  
Calcium Iron

Abstract A collaborative study evaluated the effect of wet vs. dry ashing on the atomic absorption determination of calcium, iron, magnesium, manganese, and zinc in feeds. Ten laboratories analyzed 6 samples. The high relative standard deviations indicate that ashing methods should be further studied.

Atomic Absorption Spectroscopy for Determination of ppm Quantities of Copper and Nickel in Tea

1971 ◽  
Vol 54 (3) ◽  
pp. 658-662
Author(s):  
Keith E Burke ◽  
C H Albright
Keyword(s):  
Quantitative Determination ◽  
Atomic Absorption ◽  
Hollow Cathode ◽  
Atomic Absorption Spectroscopy ◽  
Organic Material ◽  
Geographical Origin ◽  
Spectroscopic Method ◽  
Acid Decomposition ◽  
Flame Radiation

Abstract An atomic absorption spectroscopic method is described for the quantitative determination of 0.0005–0.01% (5–100 ppm) copper and nickel in tea. After acid decomposition of the organic material, the sample is aspirated into an air-acetylene flame. Radiation at 324.7 nm from a copper hollow cathode is passed through the flame, and the attenuation is measured. The measurement is also made with radiation at 232.0 nm with a nickel hollow cathode. The spectrophotometer is calibrated with known concentrations of copper and nickel in the presence of a matrix similar to that of the samples. The method is applicable to all teas regardless of their geographical origin. Results from 7 collaborators on 6 samples are given. For one sample from 7 collaborators the following mean standard deviations were obtained for 32 determinations: copper 19.5±1.7 ppm and nickel 26.0±1.0 ppm. The method has been adopted as official first action.

Determination of Alkali and Alkaline Earth Metals in Aceto Balsamico Tradizionale di Modena by Flame Atomic Absorption Spectroscopy

1996 ◽  
Vol 79 (5) ◽  
pp. 1167-1173 ◽  
Author(s):  
Fulvio Corradini ◽  
Giancarlo Franchtni ◽  
Andrea Marchetti ◽  
Carlo Preti
Keyword(s):  
Atomic Absorption ◽  
Alkaline Earth ◽  
Spectroscopic Method ◽  
Alkaline Earth Metals ◽  
High Dilution ◽  
Sodium Potassium ◽  
Flame Atomic Absorption Spectroscopy ◽  
Flame Atomic Absorption ◽  
Potassium Magnesium

Abstract An atomic absorption spectroscopic method is proposed for determination of alkali and alkaline earth metals in Aceto Balsamico Tradizionale di Modena (ABTM). Sodium, potassium, magnesium, and calcium were measured. Determination of these metals in the ABTM matrix can be a problem. High dilution of samples eliminates the need for mineralization.

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