เปรียบเทียบวิธี
ดูวิธีที่เลือกเทียบกันแบบเคียงข้าง แถวที่ต่างกันจะถูกเน้นไว้
| สเปกโทรสโกปีแบบดูดกลืนแสงอะตอม× | คูลอมเมทรี× | |
|---|---|---|
| สาขาวิชา | เคมีวิเคราะห์ | เคมีวิเคราะห์ |
| ตระกูล | Process / pipeline | Process / pipeline |
| ปีกำเนิด≠ | 1955 | 1945 |
| ผู้ริเริ่ม≠ | Alan Walsh | James Lingane |
| ประเภท≠ | elemental analysis technique | electrochemical titration |
| แหล่งต้นตำรับ≠ | Walsh, A. (1955). The application of atomic absorption spectra to chemical analysis. Spectrochimica Acta, 7, 108–117. DOI ↗ | Lingane, J. J. (1974). Electroanalytical Chemistry (2nd ed.). Interscience Publishers. ISBN: 978-0486409023 |
| ชื่อเรียกอื่น≠ | AAS, flame AAS, graphite furnace AAS, GFAAS | coulometric titration, electrochemical coulometry, amperes titration |
| ที่เกี่ยวข้อง | 5 | 5 |
| สรุป≠ | 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. | 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. |
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