![]() Females had slightly higher pH (median 7.418) than males (median 7.406) and slightly lower pCO 2(a) (median 4.9 kPa) than males (median 5.3 kPa), but these differences were judged to be too small to justify gender-specific reference intervals. The median pO 2(a) of those aged less than 40 years was 13.6 kPa this compared with a median pO 2(a) of just 11.8 kPa for those aged 40 and above. The pO 2(a) of the remaining 37 individuals aged 40-76 years ranged from 9.3 to 14.7 kPa, but the small number in this group precluded estimation of a separate reference interval. The above pO 2(a) reference interval relates only to those 131 individuals in the study group aged 20-39 years. Results of these analyses allowed non-parametric estimation of reference intervals (95 % limits) for: pH (7.38-7.46) pCO 2(a) (4.3-6.0 kPa) Base Excess (–3.0 - +2.8 mmol/L) Bicarbonate (21-27 mmol/L) pO 2(a) (11.1-15.1 kPa) and sO 2(a) (97-99 %).Īnalysis of pO 2(a) results revealed a statistically and clinically significant age-dependent effect, with pO 2(a) reducing at the rate of 0.29 kPa per decade. Samples were collected over a 6-year period by standard protocol, and analyzed within 10 minutes of collection. ![]() These included 118 medical students (aged 20-32) and a further 64 volunteers, principally health professionals (aged 20-76). ![]() Arterial blood was collected from 182 healthy adults (96 female) aged 20-76 years. This paucity, which can perhaps be best explained by the necessity of sampling arterial blood - a procedure not without risk - from healthy individuals, is addressed by results of a recent study from Aalborg hospital in Denmark. There is a paucity of published study aimed at validating the health-associated reference intervals currently used to interpret patient blood gas results. In addition, it is suggested for pumps handling reactive gases such as UF6, F2, oxygen, ozone and tritium, as the fluid can be used in direct contact with these gases without reaction and fluid degradation.The clinical value of any patient test result depends on the quality of the reference interval used for its comparison (interpretation), so that good laboratory medicine practice demands continuous review of reference intervals. PFPE Vacuum Pump Oil Topda K-H Grades are suggested for applications requiring the highest quality vacuum such as in scanning electron and transmission microscopes, mass spectrometers, particle accelerators, ion implantation, plasma and vapor deposition processes. chemlab instrument database. Because of their high stability and safety, especially the high reliability of working under particularly harsh conditions, no working medium can be comparable to perfluoropolyether oil in such harsh environment. chemlab instrument database.xls TOC Chemlab GC1-NGA GC3 Coulometer Balances CHNS ICP Spectrophotometer Dionex - IC Freeze Dryer GC-MSD H2 Generator Water system Jun-Air Carver Press Microlab dilutor Titration Furnace Rock Eval of 19. They are ideal for use in vacuum pumps as sealing & lubricating fluid and working fluids especially in the systems which are exposed to strongly oxidative substances like oxygen, ozone or nitric oxides as well as highly reactive substances like halogens and hydrogen halides. PFPE Vacuum Pump Oil Topda K-L Grades are perfluorinated polyether inert fluids with only carbon (C), fluorine(F), and oxygen(O) atoms on the molecular chain. TOPDA B-800 & B-1800 have already been NSF H1 Registered. They are widely used as base oil to formulate PFPE greases for specific appliations to meet the most challenging demands. They not only maintain the excellent properties of perfluoropolyether fluids, but also has many unique properties, such as excellent high temperature stability, good low temperature properties, low evaporative loss and high viscosity index. We provide Chemical Analysis, Microbiology Examination, Industrial Hygiene Monitoring, Blood & Urine Test, Food & Feed Analysis, Pharma & Supplement Analysis, Water. Chemlab offers a wide range of analytical services to help our customers to stay competitive in the market. PFPE Base Oil For Grease B Grades are perfluorinated polyether inert fluids with only carbon (C), fluorine(F), and oxygen(O) atoms on the molecular chain. Developing and Manufacturing of products remain difficult and costly.
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