--- 美国SPEX CLP项目标液 ---

ICP-MS干扰测试标液B1

ICP-MS Analytes B1

元素：20mg/L: Co, Cr, Cu, Mn, Ni, V
10mg/L: As, Cd, Se, Zn
5mg/L: Ag
基体：2% HNO3
体积：125mL
编号：CL-INT-B1

用途：Claritas PPT 级，电感耦合等离子体质谱仪（ICP-MS）分析用元素标液。EPA合约实验室CLP项目标液。
证书：每份标液都附有一份内容详细的标准物质证书，证书报告标液中多至68种痕量杂质元素含量实际测量结果。
溯源：美国NIST SRM  (Traceable by NIST SRM)
资质：美国实验室认可协会（A2LA）标准物质生产商认可证书（2495.01）和测试实验室认可证书（2495.02），遵循ISO 17034-2016, ISO 17025:2005, ISO 9001:2008规范。

生产商：美国SPEX公司

**应用参考 · INSTRUCTION**

每次测试开始和结束验证干扰和背景校正因子，另外每20个样品必需进行检测。标液CL-INT-A1，稀释20倍，为溶液A，标液CL-INT-A1稀释20倍再加标液CL-INT-B1稀释100倍后混合，为溶液AB。溶液A和溶液AB用于最常见的干扰检测。一旦两种溶液配制好，需连续分析，从溶液A开始。
CLP-M/6020/SW-846 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-A1) and Solution AB, a combination of interferents (CL-INT-A1) and analytes (CL-INT-B1). Solution A is prepared by diluting CL-INT-A1 20-fold. Solution AB is prepared by diluting CL-INT-A1 20-fold and CL-INT-B1 100-fold; for example, 5 mL of CL-INT-A1 and 1 mL of CL-INT-B1 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.