standard adding method

基本解釋

Method of adding iron needs a national standard;
金屬離子護色方法需有國家標準；
Objective: Adding two titrant standard solution volumes affecting acid base double point potentiometric method accuracy are discussed.
目的：探討兩次加入滴定劑標準溶液的體積對酸堿雙點電位滴定法準確度的影響。
The paper described the theory of static headspace gas chromatography , including multiple phase equilibration method, various gas-liquid phase ratio method and standard adding method.
系統(tǒng)討論了靜態(tài)頂空氣相色譜的原理，包括多次相平衡法、改變相比法和標準加入定量法。