Certified Reference Materials
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From Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/Certified_reference_materials
Certified Reference Materials (CRMs)
are ‘controls’ or standards used to check the quality and metrological traceability of products,
to validate analytical measurement methods, or for the calibration of
instruments.[1]
A certified reference material is a particular form of measurement standard.
Reference materials are particularly important for analytical chemistry and
clinical analysis.[2]
Since most analytical instrumentation is comparative, it requires a sample of
known composition (reference material) for accurate calibration.
These reference materials are produced under stringent manufacturing procedures
and differ from laboratory reagents in their certification and the traceability
of the data provided.
Quality management systems involving
laboratory accreditation under national and international
accreditation/certification standards such asISO/IEC 17025 require metrological traceability to Certified
Reference Materials (where possible) when using reference materials for calibration.[3]
Whilst Certified Reference Materials are preferred where available,[3][4] their
availability is limited. Reference Materials that do not meet all the criteria
for certified reference materials are more widely available: the principal
difference is the additional evidence of metrological traceability and statement
of measurement uncertainty provided on the certificate for certified reference
materials.[5]
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General Company Information
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Accreditations(About us) |
Certificate of Analysis |
Time Line |
Knowledge-Base |
SPEX CertiPrep was founded in 1954 to provide superior
certified reference materials and sample preparation equipment for analytical
spectroscopy.
http://www.spexcertiprep.com/
http://www.spexsampleprep.com/
Since then, SPEX CertiPrep have gained the experience,
skills, and specialized training to serve analytical scientists throughout the
world.
SPEX CertiPrep offers an unparalleled selection of inorganic standards for AA,
ICP, ICP/MS and LC-ICP/MS; and organic standards for GC, GC/MS, LC and LC/MS.
The SPEX CertiPrep is also capable to manufacture customized orders to meet our
customers' specific requirements.
We(ABDC) and SPEX CertiPrep, are global technology and sales partners, serving
application commitments for users in all institutions, industry sections, and
universities, and have successfully developed globalized Certified Reference
Materials Standards, COA and Preparations.
http://www.chromnet.net/ |
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Organic Certified Reference Material
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USP467 |
Food & Agriculture Market Segment Brochure |
Pesticide Standards |
Consumer Safety(Section 6) |
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Wine Standards |
Pharmaceutical
Residual Solvents
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Organic Standards
Overview |
LC
Pesticide Residue(Section 4) |
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Custom Standards |
US
EPA Semivolatiles(Section 3) |
US
EPA
Volatiles(Section 2) |
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Inorganic Certified Reference Material
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HyperLink
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Fusion Flux(XRF/ICP)
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IC?? l Compliance(Section 6) |
pH
Buffers |
ICP-MS Standards(Section 1) |
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USP/ICH Standards |
Consumer Safety
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Speciation |
Inorganic
Standards Overview
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30 mL Plasma Shots |
Ion Chromatography - Ion Selective Electrode Standards
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Carbon Black Reagents |
Organometallic Oil Standards |
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QC
Samples |
SPEXertificate
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SDS (MSDS) Download |
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Contamination Control-Laboratory Products
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Clean Laboratory Techniques:
How clean are your samples? If you analyze PPB
or PPT levels, you might be surprised at how easily your samples and standards
can become contaminated.
Watch Video >>
CRMs beyond the basics(error, contamination & uncertainty)
OdorEroder
- 100g
OdorEroder
- 250g
Pipette Washer Basin
Pipette Washer Pump, 115V
Pipette Washer Pump, 230V
Pipette Washer/Dryer
The Elements Card Deck by Theodore Gray
The Elements Hardcover Book by Theodore Gray
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