determination of methanol and ethanol
determination of methanol and ethanol
... for methanol and ethanol sampling. Thus, this system was tested in real sites, by means of atmospheric determination of ethanol and methanol in urban places in Rio de Janeiro, Sa˜o Paulo and ... air contaminants, over retention of methanol and ethanol by the sorbent. Results for concentrations of methanol and ethanol, measured inside and outside the lab a...
Ngày tải lên: 26/05/2014, 17:25
Tài liệu TREES OF THE NORTHERN UNITED STATES THEIR STUDY, DESCRIPTION AND DETERMINATION FOR THE USE OF SCHOOLS AND PRIVATE STUDENTS doc
... readily be TREES OF THE NORTHERN UNITED STATES THEIR STUDY, DESCRIPTION AND DETERMINATION FOR THE USE OF SCHOOLS AND PRIVATE STUDENTS BY AUSTIN C. APGAR PROFESSOR OF BOTANY IN THE NEW ... the barest outline of the parts of flowers and fruit and of their uses can be given. Fig. 9. Flowers.—Parts. The flowers of the Cherry or Apple will show the four kinds...
Ngày tải lên: 13/02/2014, 12:20
Tài liệu Báo cáo Y học: NMR-based determination of the binding epitope and conformational analysis of MUC-1 glycopeptides and peptides bound to the breast cancer-selective monoclonal antibody SM3 pptx
... resonances of Pro1 and Asp2 have t he highest intensities in the STD spectrum, signals of Thr3 are of medium intensity, while the signals of Arg4 and Pro5 have the lowest intensity. The d-protons of ... Protons of Asp2, Thr3, Arg4 (including intra- residue contacts of Arg4) and between Thr3 and Pro5 the trNOE build-up of t he b-protons of Asp2 was t aken as reference...
Ngày tải lên: 21/02/2014, 15:20
Báo cáo khoa học: Kinetic and mechanistic characterization of Mycobacterium tuberculosis glutamyl–tRNA synthetase and determination of its oligomeric structure in solution pptx
... and GluTR, whose spectrum and DLS signal are shown in Fig. S11. The migration positions of GluTR and GluRS, were determined by comparison with those of a homogeneous sample of GluRS (S) and of ... Coomassie Brilliant Blue in 40% methanol, 10% acetic acid and destained by diffusion in 40% methanol and 10% acetic acid. N-terminal sequence, mass and aggregation state of...
Ngày tải lên: 07/03/2014, 03:20
Báo cáo khoa học: Determination of thioxylo-oligosaccharide binding to family 11 xylanases using electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry and X-ray crystallography pot
... (2003) Direct mass spectrometric determination of the stoichiometry and binding affinity of the complexes between nucleocapsid protein and RNA stem-loop hairpins of the HIV-1 w-recognition element. ... a-1,3- d-arabinofuranosyl, and 2-O ⁄ 3-O-acetyl, depending on the botanical origin. Xylan accounts for 7–10% dry weight of softwoods, 15–30% of hardwoods and up to 30% of a...
Ngày tải lên: 07/03/2014, 17:20
Báo cáo khoa học: Homoadenosylcobalamins as probes for exploring the active sites of coenzyme B12-dependent diol dehydratase and ethanolamine ammonia-lyase docx
... 0.2 M ethanolamine and 5 mM 2-mercaptoethanol, in a volume of 1.0 mL. Spectra were measured at 5 min of incubation (solid lines). Spectra of the denaturated and neutralized (dotted lines) and illuminated ... Brown KL & Toraya T (2002) Functions of the d-ribosyl moiety and the lower axial ligand of the nucleotide loop of coenzyme B 12 in diol dehydratase and ethanolam...
Ngày tải lên: 07/03/2014, 21:20
DETERMINATION OF VOLATILE ORGANIC COMPOUNDS (VOC) IN CONSUMER PRODUCTS AND REACTIVE ORGANIC COMPOUNDS IN AEROSOL COATING PRODUCTS doc
... 3.3.3 Determination of ammonium content using ASTM D 1426-98 or US EPA Method 300.7. 3.3.4 Determination of ketones and alcohol content using NIOSH Method 1400. 3.3.5 Analysis of exempt and ... by weight of the individual ingredients in aerosol coating products, the precision and accuracy of the determination for each ingredient is governed by the precision an...
Ngày tải lên: 14/03/2014, 20:20
DETERMINATION OF TRACE ELEMENTS BOUND TO SOIL AND SEDIMENT FRACTIONS
... Pure and Applied Chemistry 76, 415–442 Determination of trace elements bound to soils and sediment fractions 429 and the composition of surface. Especially hydrous oxides of Fe, Al, Si, and Mn and ... implications (e.g., during dredging operations) of land disposal of waste material, of acid precipitation, of redox changes in sub- soil, and of ingestion of poll...
Ngày tải lên: 15/03/2014, 23:56
Báo cáo khoa học: ˚ cDNA cloning and 1.75 A crystal structure determination of PPL2, an endochitinase and N-acetylglucosaminebinding hemagglutinin from Parkia platycephala seeds potx
... out a more rigorous analysis of the aggregation state of PPL2 employing Fig. 1. Purification and molecular mass determination of PPL2. (A) MALDI-TOF mass determination of native PPL2 purified by affinity ... salts and proteins from the reaction mixture, 1.5 mL of chloroform and 1 mL of distilled water were added to each tube. After thorough vortexing, the aqueous upper phas...
Ngày tải lên: 16/03/2014, 13:20
Báo cáo khoa học: The optimization of protein secondary structure determination with infrared and circular dichroism spectra docx
... between the standard errors of self and cross validations gives an indication of the completeness of the information c ontained i n t he basis spectra. F or example, the standard errors of self valid ... & Keiderling, T.A. (1995) Comparison of and limits of accuracy for statistical a nalyses of vibrational and e lectronic circular d ichroism spectra in terms of corre...
Ngày tải lên: 16/03/2014, 18:20