As with all SPEX CertiPrep Plasma-Grade Standards, every CLP standard is prepared under our unique Triple-Checked Quality Assurance Program. The following instrument calibration standards are to be used in conjunction with the Statement of Work for Inorganic Analysis; Multi-Media/Multi-Concentration Document Number ILM04.0.
These solutions designed for the US EPA Contract Laboratory Program provide everything you need for:

• Instrument Calibrations
• Interference Checks
• Calibration Blanks
• Initial Calibration Verification (Containing all elements on the toxic analyte list (TAL)
• Spike Sample Analysis
• Contract Required Instrument Detection Limits (CRDL)

The final ICP-AES check, performed in our own laboratories, is your stamp of assurance. We calibrate our instruments with traceable reference materials and show you the actual found value of the solution you receive—not just an ideal, calculated number. The sections that follow contain multi-element standards referenced to their application. The combinations of chemical elements, concentrations, and the matrix listed have been designed by SPEX CertiPrep for both convenience of use and stability.

Please refer to the appropriate section of this catalog for additional single- and multi-element ICP standards that can also be used in these studies.

The US EPA SOW. ILM04.0 gives specific procedures for the methods of analysis, elements to be analyzed for, and concentration levels. Standards are specified not only by the elements present and their relative concentrations, but also the order and frequency of running standards, blanks and samples. Details of these specifications may be found in the US EPA SOW. ILM04.0 in the following sections:

• Exhibit C, Inorganic Toxic Analyte List (TAL)
• Exhibit D, Analytical Methods
• Exhibit E, QA/QC Requirements

Custom solutions are available as special orders - Just click here to request a Custom Standard.