Published February 2002 | Version v1
Journal article Metadata-only

Interferences and methods for their elimination in the determination of lanthanum as LaO by laser-enhanced molecular flame ionization spectrometry

Creators

  • 1. Moskovskij Gosudarstvennyj Univ. im. M.V. Lomonosova, Khimicheskij Fakul'tet, Moscow (Russian Federation)

Description

Interfering effects of some elements on the determination of lanthanum as LaO in natural gas-air flame by laser-enhanced, molecular ionization spectrometry were studied. It was demonstrated that easily ionized elements (Li, K, Na and Mg) exert ionization effect; in addition, sodium introduces spectral interference. The effect of indium is the same by character as sodium effect. Techniques were proposed for the elimination of these interfering effects. The elimination of the ionization interferences was conducted by 10-divisible dissolving of the investigated solutions by 0.1 M HCl

Abstract (Russian)

Изучены мешающие влияния ряда элементов на определение лантана в виде LaO в пламени природный газ-воздух методом лазерно-индуцированной молекулярно-ионизационной спектрометрии. Показано, что легкоионизируемые элементы (Li, K, Na, Mg) оказывают ионизационное влияние, кроме того, натрий вносит еще и спектральную помеху. Влияние индия по характеру схоже с влиянием натрия. Предложены способы устранения этих мешающих влияний. Устранение ионизационных помех проводили путем 10-кратного разбавления исследуемых растворов 0.1 М HCl

Additional details

Additional titles

Original title (Russian)
Мешающие влияния и способы их устранения при определении лантана в виде LaO методом лазерно-индуцированной молекулярно-ионизационной спектрометрии пламени

Publishing Information

Journal Title
Zhurnal Analiticheskoj Khimii
Journal Volume
57
Journal Issue
2
Journal Page Range
p. 158-160
ISSN
0044-4502
CODEN
ZAKHA8

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
34019183
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
AIR; EMISSION SPECTROSCOPY; FLAMES; INDIUM; INTERFERING ELEMENTS; IONIZATION; LANTHANUM; LANTHANUM OXIDES; LASER RADIATION; LITHIUM; MOLECULES; NATURAL GAS; QUANTITATIVE CHEMICAL ANALYSIS
Descriptors DEC
ALKALI METALS; CHALCOGENIDES; CHEMICAL ANALYSIS; ELECTROMAGNETIC RADIATION; ELEMENTS; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUEL GAS; FUELS; GAS FUELS; GASES; LANTHANUM COMPOUNDS; METALS; OXIDES; OXYGEN COMPOUNDS; RADIATIONS; RARE EARTH COMPOUNDS; RARE EARTHS; SPECTROSCOPY

Optional Information

Notes
7 refs., 1 tab.