Total organic carbon

Japanese: total organic carbon(英語表記)totalorganiccarbon
Total organic carbon

...total oxygen demand (TOD) and total organic carbon (TOC). TOD measures the amount of oxygen required by burning sample water under a high-temperature platinum catalyst, and because it oxidizes more completely than when an oxidizing agent is used, it shows a higher (correct) value than COD.

From [Water Pollution]

...COD (chemical oxygen demand) represents the amount of material oxidized by potassium permanganate KMnO4 or potassium dichromate K2Cr2O7 instead of microorganisms, and can also evaluate the amount of algae present, making it an indicator of organic pollution in lakes, marshes, and oceans. Also , because organic matter always contains carbon as a basic element, TOC (short for total organic carbon ) , which can be measured quickly with an infrared analyzer, is becoming the main indicator of organic matter. ...

*Some terminology explanations that mention "total organic carbon" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…total oxygen demandの略),全有機性炭素量(TOC。total organic carbonの略)がある。TODは,試料水を高温白金触媒下で燃焼させ,それに必要とした酸素量を直接測定するもので,酸化剤を用いる場合より完全な酸化が行われるため,CODよりも高い(正しい)値を示す。…

【水汚染】より

…COD(化学的酸素要求量)は微生物のかわりに過マンガン酸カリウムKMnO4や重クロム酸カリウムK2Cr2O7によって酸化される物質量を表し,藻類の現存量も評価できるので,湖沼・海域の有機汚染指標となる。また有機物は必ず炭素を基本元素として含んでいるから,赤外分析装置で迅速に測定できるTOC(total organic carbonの略。全有機炭素)が有機物の主指標となりつつある。…

※「total organic carbon」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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