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Drager

Colorimetric methods have led to the development of visual devices for measurement of benzene concentration. These visual detection tubes have been popular since the 1960s and have provided a simple and rehable method for evaluating ambient aromatic vapor contamination. These products are available from anumber of manufacturers such as Drager (Lubeck, Germany), Gastec (Tokyo, Japan), Kitagawa (Kawasaki, Japan), DuPont (Wilmington, Delaware, USA), and 3M (St. Paul, Minnesota, USA) (85). [Pg.46]

Table 10.18(a) Substances for which colour defector tubes are available from one supplier (Drager) - short-term tubes... [Pg.342]

Table 10.18(b) Drager tubes for long-term measurements - with pump... [Pg.352]

Drager tube Range of measurement for maximum period of use... [Pg.352]

Table 10.18(c) Direct-indicating Drager diffusion tubes - no pump required... [Pg.353]

Lab method using charcoal diffusive samplers, solvent desorption and gas chromatography (using Drager ORSA monitor) 64... [Pg.363]

Trithiocarbonates were reviewed by Reid (.18) and Drager and Gat-tow (30). Reaction of and S with CS2 produces CS and CS , respectively. Air-sensitive Na2CS3 has been obtained by reaction of CS2 with aqueous sodium hydroxide. [Pg.215]

Drager tubes for short-term measurements DrSger tube Range of measurement (2(fC, 1013 mbar)... [Pg.223]

Figure 14 Fractionation of 40-60-base oligodeoxyadenylates. Column 0.41 x 5 cm column packed with cross-linked and methylated PEI on Hypersil , 3 p. Eluent 50 mM potassium phosphate, 15% acetonitrile, pH 5.9 with a gradient from 200-500 mM ammonium sulfate. Flow rate 0.5ml/min. Oligomers of deoxyadenylic acid were fractionated up to a degree of polymerization of 60.180 (Reproduced with permission of Academic Press from Drager, R. R. and Regnier, F. E., Anal. Biodiem., 145, 47, 1985.)... Figure 14 Fractionation of 40-60-base oligodeoxyadenylates. Column 0.41 x 5 cm column packed with cross-linked and methylated PEI on Hypersil , 3 p. Eluent 50 mM potassium phosphate, 15% acetonitrile, pH 5.9 with a gradient from 200-500 mM ammonium sulfate. Flow rate 0.5ml/min. Oligomers of deoxyadenylic acid were fractionated up to a degree of polymerization of 60.180 (Reproduced with permission of Academic Press from Drager, R. R. and Regnier, F. E., Anal. Biodiem., 145, 47, 1985.)...
Drager, R. R. and Regnier, F. E., Application of the stoichiometric displacement model of retention to anion-exchange chromatography of nucleic acids,... [Pg.270]

Schweitzer KM, Vicart P, Delouis C, Paulin D, Drager AM, Langenhuijsen MM, Weksler BB. Characterization of a newly established human bone marrow endothelial cell line distinct adhesive properties for hematopoietic progenitors compared with human umbilical vein endothelial cells. Lab Invest 1997 76 25-36. [Pg.249]

Extrinsic Neuropathies. Autonomic dysfunction [141], pandysautonomia [142,143], Shy-Drager syndrome [144] and sympathetic dysfunction are conditions associated with intestinal dysmotility. [Pg.14]

See other pages where Drager is mentioned: [Pg.41]    [Pg.123]    [Pg.213]    [Pg.86]    [Pg.402]    [Pg.80]    [Pg.269]    [Pg.224]    [Pg.224]    [Pg.225]    [Pg.226]    [Pg.226]    [Pg.227]    [Pg.263]    [Pg.348]    [Pg.352]    [Pg.232]    [Pg.321]    [Pg.321]    [Pg.321]    [Pg.321]    [Pg.231]    [Pg.231]    [Pg.232]    [Pg.232]    [Pg.233]    [Pg.233]    [Pg.234]    [Pg.98]    [Pg.296]    [Pg.312]    [Pg.1853]   
See also in sourсe #XX -- [ Pg.184 , Pg.189 ]



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