Instruments, Scientific

Cambridge Scientific Instruments Ltd, 12-15 Sedgeway Business Park, Ely,... 

Bede Scientific Instruments Ltd, Bowbum Soutb Industial Estate Unit 13D,... 

It is important to remember that the response by a human ear to sound is different from that detected by scientific instruments, as the human ear is more sensitive in the middle frequency range than at the low and high frequencies at the same level. 

Type 5 Type D-5 Very low thermal expansion good dimensional stability Scientific instruments, glass moulds... 

Very accurate instruments of types (a) and (b) for both scientific and technical purposes are made and sold by the Scientific Instrument Company, Cambridge, England. 

Nanoindentations were carried out by using a commercial AFM (AutoProbe CP Research, Park Scientific Instruments) equipped with a commercial capacitance transducer (TriboScope, Hysitron) with a three-sided pyramidal dia-... 

Saarinen, TR Woodward, WS, Computer-Controlled Pulsed Magnetic Field Gradient NMR System for Electrophoretic Mobility Measurements, Reviews of Scientific Instruments 59, 761, 1988. 

Paper and pulp Pesticides Pharmaceuticals Photographic Scientific instruments... 

This article defines the criteria and processes for computer validation. Computer validation applies to all systems, including electronic capture systems in both the laboratory (scientific instrumentation) and field settings. Any system producing electronic records and documents, which regulators in the evaluation of product registration applications will use, needs to be validated. 

Miniaturisation of scientific instruments, following on from size reduction of electronic devices, has recently been hyped up in analytical chemistry (Tables 10.19 and 10.20). Typical examples of miniaturisation in sample preparation techniques are micro liquid-liquid extraction (in-vial extraction), ambient static headspace and disc cartridge SPE, solid-phase microextraction (SPME) and stir bar sorptive extraction (SBSE). A main driving force for miniaturisation is the possibility to use MS detection. Also, standard laboratory instrumentation such as GC, HPLC [88] and MS is being miniaturised. Miniaturisation of the LC system is compulsory, because the pressure to decrease solvent usage continues. Quite obviously, compact detectors, such as ECD, LIF, UV (and preferably also MS), are welcome. 

Lack of reliable measurement is the first reason, as reliable ground-based measurements by scientific instruments have been made just in this century. These measure conditions only at the location of each instrument, and they are usually land-based, although 75% of the Earth is covered with water. We have been able to take precise, direct measurements only in the last four decades, and not until the advent of precision space borne instruments in the 1970s were we able to measure global temperatures at a range of altitudes across the entire atmosphere. 

Ron, Moshe. "The instruments of the alchemists." In Proceedings of the eleventh international scientific instrument symposium Bologna University, Italy, 9-14 September, 1991, 35-37. Bologna Grafis, 1994. 

Superb full-color photography of original equipment, intricate scientific instruments, 3-D models, and revealing experiments offers a unique of the discoveries that have changed our way of life, from ancient alchemy to modern technology... 

Systematic errors can arise in measurements made with a given scientific instrument Often the acquired data do not represent directly the quantity of interest. Furthermore, the instrument used may not be correctly calibrated. These, and other sources of error that are inherent in an experiment give rise... 

Explosives Batteries Photographic Scientific instruments Chloralkali process Paints... 

APPARATUS AND MATERIALS. A Mettler DL40 memotitrator, DK19 Filter Titrator with filters and a DK181 Phototrode were purchased from M.S.E. Scientific Instruments, Crawley. Visible spectra were recorded on a Perkin Elmer Lambda 3 spectrophotometer. 

Pyridine adsorbed on silica gel as a function of temperature (°C). P = 1.86 x 10 2bar. (Reprinted with permission from Review of Scientific Instruments, 46 (1335), 1975. Copyright by the American Institute of Physics.)... 

Identification of the Volatile and Semi-Volatile Organics in Chewing Gums by Direct Thermal Desorption. John J. Manura, Scientific Instrument Services, Inc., Short Path Thermal Desorption—Application Note No. 12 — October 1992, http //www.sisweb.com/referenc/applnote/ap12-a.htm... 

Garcia, J.A. and Mandelis, A., Study of the thin-film palladium/hydrogen system by an optical transmittance method, Review Scientific Instruments, 67(11), 3981,1996. 

One such test involved the use of a domestic table mixer to detect flours that would suffer gluten separation when used on the plant. The test involved making a standard batter in the mixer and then beating it at maximum speed to see if gluten separation occurred. A table mixer is obviously much cheaper than a precision scientific instrument. Unfortunately for the company concerned, the mixer manufacture modified the speed control system of later versions of the mixer, such that results... 

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