--- 美國SPEX CLP項目標液 ---
ICP-MS干擾測試標液A2
ICP-MS Interferents A2
元素：10000mg/L: Cl
2000mg/L: C
1000mg/L: Al, Ca, Fe, K, Mg, Na, P, S
20mg/L: Mo, Ti
基體：5% HNO3/tr HF
體積：125mL
編號：CL-INT-A2
用途：Claritas PPT 級，電感耦合等離子體質譜儀（ICP-MS）分析用元素標液。EPA合約實驗室CLP項目標液。
證書：每份標液都附有一份內容詳細的標準物質證書，證書報告標液中多至68種痕量雜質元素含量實際測量結果。
溯源：美國NIST SRM (Traceable by NIST SRM)
**應用參考 · INSTRUCTION**
每次測試開始和結束驗證干擾和背景校正因子，另外每20個樣品必需進行檢測。
標液CL-INT-A2，稀釋10倍，為溶液A，標液CL-INT-A2稀釋10倍再加標液CL-INT-B4稀釋100倍后混合，為溶液AB。溶液A和溶液AB用于見的干擾檢測。一旦兩種溶液配制好，需連續分析，從溶液A開始。
標液CL-INT-A2，稀釋10倍，為溶液A，標液CL-INT-A2稀釋10倍再加標液CL-INT-B3稀釋100倍后混合，為溶液AB。溶液A和溶液AB用于見的干擾檢測。一旦兩種溶液配制好，需連續分析，從溶液A開始。
CLP ISM 01.2 and ILM 05.2 & 05.3 Standards for ICP-MS
For verification of inter-element and background correction factors at the beginning and the end of each analysis run. In addition, a verification must be done after every 20th sample. Two solutions are required for the most common interference check: Solution A, the interferents alone (CL-INT-A2) and Solution AB, a combination of interferents (CL-INT-A2) and analytes (CL-INT-B3 or CL-INT-B4). Solution A is prepared by diluting CL-INT-A2 10-fold. Solution AB is prepared by diluting CL-INT-A2 10-fold and CL-INT-B3 or CL- INT-B4 100-fold; for example, 10 mL of CL-INT-A2 and 1 mL of CL-INT-B3 or CL-INT-B4 into a 100 mL volumetric flask, brought to volume with a matrix blank. Once prepared, the solutions should be analyzed consecutively, starting with Solution A.
