HOMOGENEITY AND EVALUATION OF THE NEW NIST LEAF CERTIFIED REFERENCE MATERIALS

被引:5
|
作者
BECKER, DA
机构
[1] Center for Analytical Chemistry, National Institute of Standards and Technology, Gaithersburg, 20899, MD
关键词
botanical materials; Certified reference materials; homogeneity; neutron activation analysis; standard reference materials; trace-element analysis;
D O I
10.1007/BF02992713
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The NIST has produced and is in the process of certifying two new leaf CRMs, SRM1515 Apple Leaves and SRM 1547 Peach Leaves, as replacements for the no longer available NBS Orchard Leaves and the almost depleted Citrus Leaves. These two new materials have been processed and are being thoroughly evaluated and should provide the most advanced natural matrix botanical trace-element reference materials available. Caution should be used in determining a basis weight (drying) for these CRMs because of their very fine particle size. Homogeneity has been established by instrumental neutron activation analysis on both leaf materials for five elements, to date, to better than 1.5% (1 s) for 100-mg sample sizes. © 1990 Humana Press Inc.
引用
收藏
页码:571 / 577
页数:7
相关论文
共 50 条
  • [1] CERTIFIED REFERENCE MATERIALS WITH URANIUM HOMOGENEITY ON THE MICROSCALE
    DANIS, A
    DORCIOMAN, D
    PONTA, A
    [J]. REVUE ROUMAINE DE PHYSIQUE, 1986, 31 (04): : 325 - &
  • [2] CERTIFIED REFERENCE MATERIALS WITH URANIUM HOMOGENEITY ON THE MICROSCALE
    DANIS, A
    DORCIOMAN, D
    PONTA, A
    [J]. NUCLEAR TRACKS AND RADIATION MEASUREMENTS, 1986, 12 (1-6): : 785 - 788
  • [3] Certified reference materials in analytical chemistry – A century of NIST contribution
    Stanley D. Rasberry
    [J]. Accreditation and Quality Assurance, 2001, 6 : 95 - 99
  • [4] Certified reference materials in analytical chemistry - A century of NIST contribution
    Rasberry, SD
    [J]. ACCREDITATION AND QUALITY ASSURANCE, 2001, 6 (03) : 95 - 99
  • [5] EVALUATION OF THE STABILITY AND HOMOGENEITY OF REFERENCE MATERIALS
    CALAM, DH
    DAS, REG
    [J]. ANNALES DE BIOLOGIE CLINIQUE, 1993, 51 (3-5) : 334 - 335
  • [6] Neutron activation analysis as a tool for checking homogeneity of certified reference materials
    Dybczynski, R
    Kulisa, K
    Polkowska-Motrenko, H
    Samczynski, Z
    Szopa, Z
    Wasek, M
    [J]. CHEMIA ANALITYCZNA, 1997, 42 (06): : 815 - 824
  • [7] Homogeneity of wheat flour in 5 ml containers for certified reference materials
    Furukawa, R.
    Unno, Y.
    Miura, T.
    Yunoki, A.
    Hachinohe, M.
    Hamamatsu, S.
    [J]. APPLIED RADIATION AND ISOTOPES, 2018, 134 : 32 - 34
  • [8] Certified reference materials
    不详
    [J]. PHYSICS AND CHEMISTRY OF GLASSES, 2005, 46 (02): : A3 - A4
  • [9] On (Certified) Reference Materials
    De Bièvre, P
    [J]. ACCREDITATION AND QUALITY ASSURANCE, 2006, 10 (09) : 459 - 460
  • [10] EVALUATION OF HOMOGENEITY OF A CERTIFIED REFERENCE MATERIAL BY INSTRUMENTAL NEUTRON-ACTIVATION ANALYSIS
    KRATOCHVIL, B
    DUKE, MJM
    NG, D
    [J]. ANALYTICAL CHEMISTRY, 1986, 58 (01) : 102 - 108