National Institute of Science and Technology NIST

For conformance to GMP or ISO 9000 requirements, instmment cahbration must be documented to include identification of the instmment and the cahbration standard. The standard must be traceable to a recognized standard such as from the National Institute of Science and Technology (NIST). Cahbration documentation also includes the method of cahbration and a record of the cahbration results. 

A fluonnated dimethyl ether is assigned the same number as the corresponding Cj alkane prefixed with an "E , a nomenclature recently adopted by the National Institute of Science and Technology (NIST) in the United States... 

The GC-MS retention time and mass spectra of peak B are closely matched with the retention time and mass spectra of hydroquinone standard. The mass spectra of hydroquinone also show the same M+ peak at m/e 194 and [M-AC2]+ peak at m/e 110 as peak B. In addition, the mass spectra of peak B also closely match those of the acetylated hydroquinone in the computer database of the National Institute of Science and Technology (NIST) mass spectral library. That is, peak B corresponds to acetylated hydroquinone. 

National Institute of Science and Technology (NIST), 7, 28 Nicotinic acid, 5 Nimesulide, 6, 28 N,N-dimethylacetamide, 19 N,N-dimethylformamide, 19 Noyes-Whitney equation, 19... 

Computer matches with the National Institute of Science and Technology (NIST) database initially identified compounds. Many, though not all, were subsequently confirmed using commercial mixtures of analytical standards. The concentrations of all compounds were computed on a relative scale (ion abundance/dm air sampled) but are not reported here. Compounds of interest to regulatory agencies have been rigorously quantified [11-14]. 

Other methodologies fall into the category of definitive or alternative reference methodologies. The definitive method for lead, against which other methods are qualified for reference use, and the one employed for standard sample lead certification by the National Institute of Science and Technology (NIST), is isotope-dilution mass spectrometry (IDMS). Among its cardinal virtues, in addition to accuracy and precision, are sensitivity and applicability to many lead-containing environmental matrices. 

National Institute of Science and Technology (NIST) (2014) NIST Standard Reference Database lA, NIST/EPA/NIH Mass Spectral Library with Search Program, http //www.mstgov/srd/ nistla. fm (accessed 10 May 2014). 

The National Institutes of Science and Technology (NIST) maintains an extensive database of chemical information [7]. Included are thermochemical data, spectral data, and kinetic data, which are searchable by name, structure, molecular weight, and other options that are compound specific. 

In 1989, Wolfgang Paul and Hans Dehmelt won the Nobel Prize for then-work on ion traps. The most precise atomic clock built so far (at the National Institute of Science and Technology [NIST]) has a single mercury ion in a Paul trap (Diddams et al., 2001). The clock will lose about one second in the estimated age of the universe (14 billion years). Atomic clocks have a lot in common with qubits. Both rely on a two-level system that is extremely well isolated from its environment but can still be manipulated in a precisely controlled way, with lasers, for example. 

ODE solver, the program calculates the cOTicentration-time curves and provides the results in the form of tables and graphs. Such a simulation code was developed at the National Institute of Science and Technology (NIST), called ACUCHEM, (Braun et al. 1988 ACUCHEM). Other similar simulation codes are Tenua (Tenua) and program DIFF of the KINAL package (Turanyi 1990 KINAL). 

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