CCQM-K143 comparison of copper calibration solutions prepared by NMIs/DIs

Autor: Suleyman Z Can, Maren Koenig, Anita Roethke, Rodrigo Caciano de Sena, Pavel Migal, Tom Oduor Okumu, Veniamin M. Zyskin, Patricia Romero Arancibia, Betül Ari, Hyung Sik Min, Mirella Buzoianu, Rosi Ketrin, Myung Sub Han, Brad Methven, Lu Yang, S Swarupa Tripathy, R.K. Kotnala, Sung Woo Heo, Marcelo Dominguez de Almeida, Christine Elishian, Antonio Possolo, Alena Sobina, Maria del Rocio Arvizu Torres, James Snell, Kenny Nadeau, Wu Bing, Olaf Rienitz, Youngran Lim, Therese A. Butler, Heidi Goenaga Infante, Maré Linsky, Egor Sobina, Jochen Vogl, Zhou Tao, Edith Valle Moya, Toshihiro Suzuki, Yong-Hyeon Yim, Francisco Segoviano Regalado, Volker Goerlitz, Judith Velina Lara Manzano, Michael R. Winchester, John L. Molloy

Main text CCQM-K143 is a key comparison that assesses participants' ability to prepare single element calibration solutions. Preparing calibration solutions properly is the cornerstone of establishing a traceability link to the International System o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::728db74bb3a78defac9512beda403894
https://nrc-publications.canada.ca/eng/view/object/?id=c2df3d7f-7843-4aa2-ae0e-94d5de31757b

Report of the CCQM-K124: trace elements and chromium speciation in drinking water, part A: trace elements in drinking water, part B: chromium speciation in drinking water

Autor: Fransiska Dewi, P Song, D W M Sin, W H Fung, E Mardika, W Juan, Elizabeth Ferreira, L Pérez, Jung Ki Suh, Judith Velina Lara Manzano, R. Barriga, E Lampi, Christian Uribe, Carola Pape, Elias Kakoulides, Karen E. Murphy, S L Peng, H S Chu, J N Kang'iri, I Komalasari, U Thiengmanee, T Sara Aho, H Goenaga Infante, Zoltán Mester, C Núñez, Anatoliy Krylov, L Yang, Y Lim, T Nüykki, Caroline Oster, R Shin, Q Wang, Leonid Konopelko, A R C Dablio, Olaf Rienitz, B L Kassim, S S Riquelme, R Pérez, S Vadim, David Saxby, John L. Molloy, Janaína Marques Rodrigues, Jeffrey Merrick, Sutthinun Taebunpakul, Kazumi Inagaki, Milena Horvat, H Lu, Ian White, Y H Yim, Nattikarn Kaewkhomdee, K S Lee, H Klich, J Wang, R L Damian, S Z Can, E Carrasco, Sung Woo Heo, E D Tayag, Marcelo Dominguez de Almeida, E K P Encarnacion, S E Long, Guillaume Labarraque, Charun Yafa, X Chang, Yanbei Zhu, Rosi Ketrin, Tea Zuliani, J Chao, R Jührling, Takayoshi Kuroiwa, Indu Gedara Pihillagawa, N Shi, Tom Oduor Okumu, Oktay Cankur, Therese A. Butler, T O Araújo, Betül Ari

CCQM-K124 was organized by the Inorganic Analysis Working Group (IAWG) of CCQM to assess and document the capabilities of the national metrology institutes (NMIs) or the designated institutes (DIs) to measure the mass fractions of trace elements (As,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11af68bcb1c8491cd6e765e71eeafd45
https://nrc-publications.canada.ca/eng/view/object/?id=28babbb3-25e1-419a-bd64-82d63dd673d8

Certification of Beryllium Mass Fraction in SRM 1877 Beryllium Oxide Powder Using High-Performance Inductively Coupled Plasma Optical Emission Spectrometry with Exact Matching

Autor: Therese A. Butler, Ritu Sud, Mark D. Hoover, Michael R. Winchester, Aleksandr B. Stefaniak, Charles Coleman, Thomas J. Oatts, Donald Nadratowski, Gregory C. Turk

Publikováno v: Analytical Chemistry. 81:2208-2217

High-performance inductively coupled plasma optical emission spectrometry (HP-ICP-OES) was used to certify the Be mass fraction in National Institute of Standards and Technology (NIST) Standard Reference Material (SRM) 1877 Beryllium Oxide Powder. Th

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https://doi.org/10.1021/ac802251n

Preparation and certification of a rhodium standard reference material solution

Autor: Charles M. Beck, Laura J. Wood, Robert L. Watters, Marc L. Salit, Therese A. Butler

Publikováno v: Analytical Chemistry. 65:2899-2902

A dual-path approach has been developed for the production of an accurate rhodium solution standard. First, a water-soluble rhodium salt was assayed for rhodium by gravimetry. Second, a different water-soluble rhodium salt was synthesized from a know

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6b2ae46fb0f6348115c428e20c8bf37e
https://doi.org/10.1021/ac00068a030

Genetic relationships in Arceuthobium monticola and A. siskiyouense (Viscaceae): New dwarf mistletoe species from california and oregon

Autor: Therese L. Butler, Daniel L. Nickrent

Publikováno v: Biochemical Systematics and Ecology. 19:305-313

Key Word Index--Arceuthobium siskiyouense; A. monticola; Viscaceae; electrophoresis; allozymes. Abstract--Genetic among eight populations of two new species of Arceuthobium from the Klamath and Siskiyou Mountains of northwestern California and southw

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2d4c09b91dcda4c3fe4c12b8945671df
https://doi.org/10.1016/0305-1978(91)90018-u