Test center of the Novosibirsk Chemical Concentrate Plant

The authors of this paper, Head of the Control and Methodological Laboratory of the Central Plant Laboratory (CPL) A.I. Kamelin, Head of CPL N.P. Miroshnik, and Deputy Head of CPL V.L. Pasechnik, recollect stages of the development of plant analytics and, which is most important, the people responsible for the success achieved by the plant test center, whose core was always the Central Plant Laboratory.     

International cooperation in age-dating uranium standards for nuclear forensics using the 231Pa/235U radiochronometer

Journal of Radioanalytical and Nuclear Chemistry - During 2017–2018 Los Alamos National Laboratory, Lawrence Livermore National Laboratory and the China Institute of Atomic Energy...     

Update on the activities of the National Cooperation for Laboratory Accreditation

 The efforts to form a laboratory accreditation cooperation in the United States and North America are described, including activities of the Laboratory Accreditation Working Group and the interim board of the National Cooperation for Laboratory Accreditation. The vision, mission, and guiding principles developed by the two groups are presented, along with the operational documents, such as bylaws, the recognition document, guidance documents and the quality manual drafted by the interim board. Received: 8 June 1998 · Accepted: 16 June 1998     

Vendor test studies supporting the design of a biomass-to-ethanol pilot plant

Applied Biochemistry and Biotechnology - In support of the effort to develop the biomass-to-ethanol process, the National Renewable Energy Laboratory (NREL) is building a pilot plant based on the...     

Elemental and nuclear anlaysis at the Reactor Laboratory,Technical Research Centre of Finland

The analytical activity of the Reactor Laboratory of the Technical Research Centre of Finland is discussed.     

Central plant laboratory of the urals electrochemical integrated enterprise

The history of the establishment and development of the Central Plant Laboratory of the Urals Electrochemical Integrated Enterprise is briefly considered; information on the most important studies and their authors is given.     

Radioactive fallout from the chernobyl nuclear reactor accident

Following the accident at the nuclear reactor at Chernobyl, in the Soviet Union on April 26, 1986, we performed a variety of measurements to determine the level of the radioactive fallout on the western United States. We used gamma-spectroscopy to analyze air filters from the areas around Lawrence Livermore National Laboratory (LLNL), California, and Barrow and Fairbanks, Alaska. Milk from California and imported vegetables were also analyzed. The levels of the various fission products detected were far below the maximum permissable concentration levels.Work performed under the auspices of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under contract number W-7405-ENG-48.     

Upgrading the Iranian national laboratory standard to conform to ISO 15189:2012

Accreditation and Quality Assurance - The Reference Health Laboratory (RHL) of Iran is the national authority responsible for making policies and plans for providing quality laboratory services...     

The role of metrology in chemistry in the upholding of public health and food safety in Hong Kong

The Government Laboratory has been involved in the provision of analytical and advisory services since its formal establishment in 1913 in support of the needs of the community and the commitments of the Government of Hong Kong Special Administrative Region, China. One of the earliest areas of work involves the testing of food samples for maintenance of public health and food safety. Remarkable advances in technology in recent years coupled with the introduction of new policies and regulations, the launching of new international standards and requirements have all contributed to significant and ever-rising demand of accurate, specific, comparable and traceable measurements using the latest technologies for a wide variety of additives, contaminants, residues and genetically modified ingredients in food.Metrology, the science of measurement, has always played a key role in the development and validation of analytical methodologies in the Government Laboratory for the realization of its measurements to the highest level of accuracies and traceability to internationally recognized standards. Besides the application of the latest analytical technologies such as isotope dilution mass spectrometry, tandem mass spectrometry, real-time polymerase chain reactions, etc., the Analytical and Advisory Services Division of the Laboratory develops a quality assurance system in full compliance with the requirements of ISO/IEC 17025 and endeavours to ensure that every analytical methods are validated with the best applicable means and are fit for the intended purposes. In this presentation, the role and application of metrology in chemistry in the measurements pertaining to public health and food safety work undertaken by the Government Laboratory are discussed.Presented at International Symposium on Metrology in Chemistry, 2004 Beijing, China.     

Ab initio SCF MO calculations on the CH3Br molecule

Self-consistent fieldab initio calculations have been performed for CH₃Br. The calculated equilibrium conformation is in good agreement with experiment. Valence and core level ionization potentials, Mulliken population analysis and electronic properties are presented. The ionization potentials are in good agreement with the experimental values, except for one case in which the experimental value may be wrongly assigned. The calculated dipole moment, 2.43 Debye, is 34% or 0.6 Debye larger than the experimental value.Two of us (C.W.B. and G. del C.) wish to acknowledge the hospitality of the IBM San José Research Laboratory and joint study agreements between the IBM and the Lawrence Berkeley Laboratory and the National University of Mexico respectively.     

What can time-resolved diffraction tell us about transient species?: excited-state structure determination at atomic resolution

The author describes his work for which he coined the word 'photocrystallography', a technique which consists of using a laser to pump, or excite, a molecular crystal while the X-ray diffractometer probes its structure at the atomic level. The technique is being used to study highly reactive excited molecules that exist for just millionths or even billionths of a second using very intense light sources at the National Synchrotron Light Source at Brookhaven National Laboratory and the Advanced Photon Source at Argonne National Laboratory.     

The organization of proficiency testing in plant pathology (qualitative methods of analysis) according to the ISO/IEC 17043: example of the French national reference laboratory

The use of methods of analysis capable of producing reliable analytical results is a prerequisite to the effective control of quarantine plant pathogens. Proficiency testing is considered to be one of the most reliable ways to verify and coordinate analytical results. As a French national reference laboratory in plant pathology, the Anses Plant Health Laboratory organizes proficiency tests in order to ensure that officially approved laboratories (certified by government services) are capable of producing reliable analytical results for the detection of plant pathogens. Proficiency tests in plant pathology have a number of notable features including the processing of qualitative results. This paper presents the experience of the Anses Plant Health Laboratory’s Unit for Tropical Pests and Diseases (LSV-RAPT) as an organizer of proficiency tests in plant pathology. The LSV-RAPT has gained recognition for the methodology it has developed in the form of accreditation as a proficiency testing provider according to the ISO/IEC 17043. The methodology can be applied to many other disciplines that use qualitative detection methods.     

Proposed guidelines for the final review of measurement results in the clinical laboratory

The standard ISO 15189 requires a systematic review of results of clinical laboratory examinations, but it does not provide details on how to carry out such a review. In this article, the Catalan Association of Clinical Laboratory Sciences proposes a guide for this review of patients’ clinical laboratory results pertaining to rational or difference scales (‘quantitative values’). The review process is based on the so-called plausibility control, which may be defined as the set of procedures used to decide if a measurement result is valid or not according to established clinical and biological criteria, considering four variables: (1) alert limits; (2) consistency with the previous result, if any; (3) consistency with other results obtained from the same sample, if any; and (4) consistency with the diagnosis (presumed or confirmed) or, when it is not known, the origin of the request, though these last criteria are generally very weak and the derived decisions may be scantly reliable. This guide has been prepared on the behalf of the Technical Committee of the Catalan Association for Clinical Laboratory Sciences. Papers published in this section do not necessarily reflect the opinion of the Editors, the Editorial Board and the Publisher.     

A comparison of pulser-based analog and digital spectrometers

We have begun a program of updates to the instruments used by the Radiation Measurements Laboratory at the Idaho National Laboratory. This laboratory supports the Advanced Test Reactor as well as many other programs throughout the INL. The first step in this upgrade is the updating of the gamma-ray spectrometry systems. Currently, these gamma-ray spectrometers use a standard spectroscopy amplifier and a pulser-based ADC. We have performed a series of tests to determine if a digital-signal processor-based system can replace these analog electronics, with little to no loss in performance.     

A computer program for the automatic identification of edible oils by gas—liquid chromatography

A computer program is given for the identification of edible oils from their fatty acid ratios. The program was used with the Hewlett-Packard 3354 Laboratory Automation System in autocall mode to identify a number of vegetable oils from the fatty acid ratios determined by gas chromatography of the trans-esterified oil samples.     

Thermal design,analysis, and testing of the first Turkish 3U communication CubeSat in low earth orbit

Journal of Thermal Analysis and Calorimetry - TURKSAT-3USAT is the first Turkish communication 3U CubeSat designed and built by the students of the Space Systems Design and Test Laboratory and...     

Analytical Chemistry at the Institute of Single Crystals of the National Academy of Sciences of Ukraine

The paper describes the history and main lines of inquiry of the Analytical Laboratory at the Institute of Single Crystals (Kharkov, Ukraine) organized in 1955.     

Changing the rules of the game: used fuel studies outside of a remote handling facility

Journal of Radioanalytical and Nuclear Chemistry - Pacific Northwest National Laboratory (PNNL) has leveraged focused ion beam capability at their Category II Nuclear Facility to facilitate nuclear...     

Direct Experimental Observations of Ion Distributions during Overcharging at the Muscovite-Water Interface by Adsorption of Rb+ and Halides (Cl−, Br−, I−) at High Salinity

The front cover artwork is provided by Argonne National Laboratory. The image shows the arrangement of correlated cations and anions at a charged solid surface in contact with highly concentrated electrolyte solutions. Read the full text of the Research Article at 10.1002/cphc.202300545 .