قارن الطرق

	مطيافية الامتصاص الذري	كروماتوغرافيا الأيونات
المجال	الكيمياء التحليلية	الكيمياء التحليلية
العائلة	Process / pipeline	Process / pipeline
سنة النشأة	1955	1975
صاحب الطريقة	Alan Walsh	Hamish Small
النوع	elemental analysis technique	separation and analysis technique
المصدر التأسيسي	Walsh, A. (1955). The application of atomic absorption spectra to chemical analysis. Spectrochimica Acta, 7, 108–117.	Small, H., Stevens, T. S., & Bauman, W. C. (1989). Novel ion exchange chromatographic method using conductometric detection. Analytical Chemistry, 47(11), 1801–1809.
الأسماء البديلة	AAS, flame AAS, graphite furnace AAS, GFAAS	IC, ion-exchange chromatography, IEC
ذات صلة	5	5
الملخص	Atomic absorption spectroscopy is an analytical technique that measures the concentration of metal elements by detecting the absorption of light by ground-state metal atoms in the gaseous state. Invented by Alan Walsh in 1955, it rapidly became the standard method for trace metal analysis in environmental, clinical, agricultural, and industrial samples. Atomic absorption spectroscopy's sensitivity, selectivity, and simplicity make it indispensable for monitoring toxic metals, nutritional minerals, and elements in complex matrices.	Ion chromatography is a liquid chromatography method that separates ions and polar molecules based on their relative affinity for the ion exchange resin in the column. Developed by Hamish Small in 1975, it combines ion-exchange separation with conductivity detection, enabling rapid, sensitive, and simultaneous determination of multiple ions in a single analysis. Ion chromatography has become an indispensable tool for monitoring environmental pollutants, analyzing food and pharmaceutical products, and studying complex ionic mixtures.