So sánh phương pháp

	Đo điện lượng	Phổ hấp thụ tử ngoại-nhìn thấy
Lĩnh vực	Hóa phân tích	Hóa phân tích
Họ	Process / pipeline	Process / pipeline
Năm ra đời	1945	1852
Người khởi xướng	James Lingane	August Beer
Loại	electrochemical titration	absorption measurement technique
Công trình gốc	Lingane, J. J. (1974). Electroanalytical Chemistry (2nd ed.). Interscience Publishers. ISBN: 978-0486409023	Beer, A. (1852). Bestimmung der Absorption des rothen Lichts in farbigen Flussigkeiten. Annalen der Physik und Chemie, 86(5), 78–88.
Tên gọi khác	coulometric titration, electrochemical coulometry, amperes titration	UV-Vis spectroscopy, absorption spectroscopy, colorimetry
Liên quan	5	5
Tóm tắt	Coulometry is an electrochemical analytical method that determines the concentration of an analyte by measuring the total electric charge (in coulombs) required to oxidize or reduce the analyte completely at an electrode. Developed by James J. Lingane in the 1940s, coulometry is highly accurate because it is based on fundamental constants (Faraday's law) and does not require external standards or calibration curves. This method is particularly valuable for trace analysis, water determination, and analysis of reactive species.	UV-Vis spectrophotometry is an optical analytical technique that measures the absorption of ultraviolet and visible light (wavelengths 190–900 nm) by substances in solution. Founded on the Beer-Lambert law (developed by August Beer and Pierre Bouguer), it is one of the oldest and most widely used quantitative analytical methods. UV-Vis spectrophotometry is economical, rapid, and applicable to a vast range of organic and inorganic compounds, making it indispensable in pharmaceutical, clinical, environmental, and research laboratories.