Environmental Certified Reference Materials (CRMs) are utilized to evaluate new analytical methods and to control the accuracy of pretreatment and instrumental analyses.
National Institute for Environmental Studies (NIES) have been preparing and distributing environmental and biological CRMs since 1980.
At present, 16 CRMs are available (including 1 CRM which cannot be sent overseas).
National Institute for Environmental Studies
Center for Environmental Measurement and Analysis/CRM
16-2 Onogawa, Tsukuba-Shi, Ibaraki, 305-8506 Japan
FAX: +81-29-850-2900
e-mail: nies.crm@nies.go.jp
How to Order
List of CRMs
- No.3 ChlorellaCRM No.3 was prepared from spray-dried chlorella commercially manufactured. It has high concentrations of Fe and P , though low concentrations of heavy metals. Certified values are provided for K, Ca, Mg, Fe, Mn, Sr, Zn, Cu, Co, and reference values are reported for P, Pb, Cd and Sc.
- No.10-d Rice Flour-UnpolishedCRM No.10-d, which continues NIES CRM No.10 series, was developed and certified for the determination of cadmium and other elements in unpolished rice and materials of similar matrix. Certified values are given for eight elements and reference values for a further five elements.
- No.12 Marine SedimentCRM No.12 was prepared from the sediment at the center of Bay of Tokyo. Certified values are provided for tributyltin and total tin, and reference values for triphenyltin and 21 elememts , Na, Mg, Al, Si, K, Ca, Ti,V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Rb, Sr, Cd, Ba, Hg, and Pb.
- No.13 Human HairCRM No.13 is prepared for use in evaluation of accuracy of methylmercury and selected heavy metals( Hg, Cd,Cu, Pb, Sb, Se, Zn)of human hair and other samples with similar matrices. Each bottle contains approximately 3 g of homogeneous human hair powder.
- No.15 ScallopCRM No.15 Scallop was developed and certified for the determination of tributyltin, triphenyltin, and total tin in scallops and materials of similar matrix.
- No.18 Human UrineCRM No.18 is intended for use in quality assurance of analysis of arsenic and other selected trace elements in urine. One unit of NIES CRM No.18 consists of two bottles, each bottle containing freeze-dried urine corresponding to approximately 10 ml. Certified values are provided for As, arsenobetaine, dimethylarsinic acid, Se, and Zn. Reference values are reported for Cu and Pb.
- No.23 Tea Leaves IICRM No.23 was developed and certified for the determination of multi-elements in tea leaves and materials of similar matrix. Certified values are provided for 9 elements, and reference values for 5 elements. This CRM supersedes NIES CRM No. 7 Tea Leaves.
- No.24 Fly Ash IICRM No.24 FLY Ash II was prepared from fly ash. Certified values are provided for PCDDs and PCDFs, while reference values for dioxin-like PCBs.
- No.26 Water BloomCRM No.26 was prepared from the blue-green alga Microcystis. Certified values are provided for Microcystin and Ca, Fe, K, Mg, Na, Mn, Sr, Zn, while reference values for S, P, Co, Cu, Ni and Pb.
- No.27 Typical Japanese DietCRM No.27 is intended for use in quality assurance of analyses of minor and trace elements in the Japanese diet and in similar food matrices. It was produced by the National Institute for Environmental Studies (NIES), Ibaraki, Japan, and the National Institute of Radiological Sciences (NIRS), Chiba, Japan.
- No.28 Urban AerosolsCRM No.28 is intended for use in quality assurance of analyses of elements in aerosols. Certified values are provided for 18 elements and reference values for 14 elements.
- No.29 Water HyacinthCRM No.29 is intended for use in quality assurance of analyses of elements in water hyacinth and similar water plants. Certified values are provided for 13 elements and reference values for 6 elements.
- No.30 Gobi Kosa DustCRM No.30 was developed and certified for the determination of multi-elements in Asian mineral dust (kosa dust) originating from arid areas of the Gobi Desert in north-east Asia, and in materials of similar matrix.
- No.31 Lake SedimentThis CRM was developed for the determination of multi-elements in lake sediment and in materials of similar matrix. This CRM supersedes NIES CRM No. 2 Pond Sediment. Certified values and reference values are given for the whole material as supplied, and for the HCl/HNO3/HClO4 extract, determined according to “The Methods for Sediment surveillance ” of the Ministry of the Environment, Japan (August, 2012).
- No.32 BluegillCRM No.32 was developed and certified for the determination of perfluorooctanesulfonic acid (PFOS) in the freshwater fish bluegill (Lepomis macrochirus) and in materials of similar matrix.
- No.33 Landfill Cover SoilCRM No.33 Landfill Cover Soil was developed for the determination of multi-elements in soil and materials of similar matrix following extraction with 1 mol/L hydrochloric acid. The method of analysis is based on “The method of compliance test of the Ministry of Environment Japan, Notification 19 (March, 2003)”. Certified Values are provided for 10 elements and reference values for 3 elements.