The determination of metals in traces by means of electrothermal atomization atomic absorption spectrometry (ETA-AAS) presents analytical difficulties for complex matrixes such as seawater or brines. Some of them can be overcome with sample pretreatment or through the use of matrix modifiers at the
Reduction of temperature variation in the atomic absorption graphite furnace
โ Scribed by W. Slavin; S.A. Myers; D.C. Manning
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 498 KB
- Volume
- 117
- Category
- Article
- ISSN
- 0003-2670
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
A procedure was developed for the quanhficatlon of thalbum at the ultratrace level (ng g-l) m geoloacal matenals The sample 1s dissolved m 3 M H2S04 to which IS added KI and K,HP04 The thalhum IS then extracted as its mdo complex mto methyhsobutyl ketone (MIBK), leavmg behind most of the n-on The re
The use of KH2P04/NH4N0, as matrix modifier eliminates severe interference effects on the atomic absorption analysis of lithium in biological fluids. This enables determination of trace lithium in microliter size samples with absolute sensitivity (0.0044 absorbance) of 2 pg. There is no requirement
The lead concentration in different parts of cucumber plants, growing in "lead-free" and lead-contaminated nutrient solutions, was determined by the graphite furnace atomic absorption spectrometry technique after microwave-assisted acidic digestion of the dried plant parts. The lead accumulates firs
A graphite furnace atomic absorption spectrometry method with Zeeman background correction for the direct determination of cadmium in grape wines is described. Use of ammonium dihydrogen phosphate, magnesium nitrate, and palladium nitrate as matrix modifiers was investigated. Palladium nitrate with
A sensitive method for the determination of bismuth in clinical samples using hydride generation/ trapping and atomization in a graphite furnace is described. Addition of \(\mathrm{Pd}-\mathrm{Ir}\) to the furnace tube surface before hydride trapping leads to great improvement in the sensitivity of