DETERMINATION OF THE MOLECULAR WEIGHT OF A VOLATILE LIQUID

delta values at 80 j C than runs 1–3 (uncoupled polymer terminated with tributyltin chloride).
For silica compounds, different functional groups are required for polymer–filler interaction. Alkoxysilanes such as 3-triethoxysilylpropyl chlo- ride, chlorodimethylsilane, and bis-(3-triethoxysilypropy[r]

A sensitive, specific, reproducible and optimized high performance liquid chromatography with fluorescence detection (HPLC-FLD) method for the determination of bergapten in rat plasma was established and applied to the pharmacokinetic and bioavailability study in rat after oral and intravenous admin[r]

Sutton (1985) evaluated the accuracy of the Standing-Katz compress- ibility factor chart using laboratory-measured gas compositions and z- factors, and found that the chart provides satisfactory accuracy for engi- neering calculations. However, Kay’s mixing rules, i.e., Equation[r]

RPC is not ruled out for prep-LC separation, as there are several options for the recovery of solvent-free product—depending on the nature of the product. Additionally any required buffers or additives can be selected from a list of volatile co[r]

The trap was then heated to release volatile compounds including ethylmethylmercury into a GC-AFS for separation and detection. The instrumental detection limit was 4.8 pg Hg/L. The method can therefore be applied for the determination of methylmercury in water samples at ultra – trace.

50.6 Preparation of Polyester Coatings 20
For the preparation of paints based on saturated hydroxyl polyesters, amino resins are the most commonly chosen cross-linkers. Melakine–formaldehyde condensates are preferred over urea–formaldehyde resins in view of th[r]

The two methods mentioned above used to produce oligomers, enzymatic and acid hydrolysis should be readily adapted to produce chitin of lower molecular weight to the desired level of mat[r]

• Triglycerides A and B have the very similar molecular weights of about 878. The compound A has 6 double bonds per molecule and has iodine value is 174. The compound B has 3 double bond per molecule. What is the iodine value of[r]

Antiphospholipid s yndrome ( APS )
Individuals presenting with clinical signs of thrombosis or embo- lism which is objectively confi rmed should receive heparin, either unfractionated or low molecular weight, according to accepted therapeutic regimens. Since minimal dose[r]

These demonstrate that the model silica liquid consisting of 2000 atoms was good enough for us to study structural properties and diffusion. However, the large model will help us furthe[r]

A Reverse phase high-performance liquid chromatographic method (RP-HPLC) for the simultaneous determination of tetracycline, Oxytetracycline and chlortetracycline residues in milk has been developed. The determination of these antimicrobials was carried out using HPLC UV-VIS with a C8 hybrid column[r]

ABSTRACT
In this research, 40 yeast strains that were isolated from alcoholic fermentation starters were examined for morphology, physiology, biochemistry, thermo-tolerant ability at 30, 35, 37, 40, 43, and 45ºC, and for their ethanol tolerant ability at 3, 6, 9, and 12% v/v ethanol.