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A procedure is proposed to name new elements. After the discovery of a new element is established by a joint IUPAC–IUPAP Working Group, the discoverers are invited to propose a name and a symbol to the IUPAC Inorganic Chemistry Division. Elements can be named after a mythological concept, a mineral, a place or country, a property, or a scientist. After examination and acceptance by the Inorganic Chemistry Division, the proposal follows the accepted IUPAC procedure and is then submitted to the IUPAC Council for approval.
Pure Appl. Chem., Vol. 74, No. 5, pp. 787–791, 2002.
IUPAC Recommendations 2002
© 2002 IUPAC
IUPAC permission is acknowledged
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The terms recovery and apparent recovery are recommended to avoid confusion caused by the use of the term recovery to cover two distinct situations. These situations deal with: (a) the yield of a preconcentration or extraction stage of an analytical process (where recovery is recommended) and (b) the quantity observed value/reference value, obtained using an analytical procedure that involves a calibration graph (where apparent recovery is recommended).
Pure Appl. Chem., Vol. 74, No. 11, pp. 2201–2205, 2002.
IUPAC Recommendations 2002
© 2002 IUPAC
IUPAC permission is acknowledged
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Method validation is one of the measures universally recognized as a necessary part of a comprehensive system of quality assurance in analytical chemistry. In the past, ISO, IUPAC, and AOAC International have cooperated to produce agreed protocols or guidelines on the “Design, conduct and interpretation of method performance studies” [1], on the “Proficiency testing of (chemical) analytical laboratories” [2], on “Internal quality control in analytical chemistry laboratories” [3], and on “The use of recovery information in analytical measurement” [4]. The Working Group that produced these protocols/guidelines has now been mandated by IUPAC to prepare guidelines on the single-laboratory validation of methods of analysis. These guidelines provide minimum recommendations on procedures that should be employed to ensure adequate validation of analytical methods.
A draft of the guidelines has been discussed at an International Symposium on the Harmonization of Quality Assurance Systems in Chemical Laboratory, the proceedings from which have been published by the UK Royal Society of Chemistry.
Pure Appl. Chem., Vol. 74, No. 5, pp. 835–855, 2002.
IUPAC Technical Report
© 2002 IUPAC
IUPAC permission is acknowledged
