เปรียบเทียบวิธี

	โครมาโทกราฟีไอออน	สเปกโทรสโกปีแบบดูดกลืนแสงอะตอม
สาขาวิชา	เคมีวิเคราะห์	เคมีวิเคราะห์
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1975	1955
ผู้ริเริ่ม	Hamish Small	Alan Walsh
ประเภท	separation and analysis technique	elemental analysis technique
แหล่งต้นตำรับ	Small, H., Stevens, T. S., & Bauman, W. C. (1989). Novel ion exchange chromatographic method using conductometric detection. Analytical Chemistry, 47(11), 1801–1809.	Walsh, A. (1955). The application of atomic absorption spectra to chemical analysis. Spectrochimica Acta, 7, 108–117.
ชื่อเรียกอื่น	IC, ion-exchange chromatography, IEC	AAS, flame AAS, graphite furnace AAS, GFAAS
ที่เกี่ยวข้อง	5	5
สรุป	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.	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.