Simultaneous microdetermination of fluorine, chlorine, bromine and sulfur in organic compounds by ion chromatography.

Wet Digestion

gen flask combustion, Part 7. Fresenius Journal of Analytical Chemistry 360: 184–191. Kowalenko CG (2000) Influence of sulfur and nitrogen fertilizer applications and within-season sampling time on measurement of total sulfur in orchardgrass by six different methods. Communications in Soil Science and Plant Analysis 31: 345–354. Kuboyama K, Sasaki N, Nakagome Y, Kataoka M, and Tamura C (1996) S...

Simultaneous determination of fluorine and chlorine in rocks by ion chromatography in combination with alkali fusion and cation-exchange pretreatment.

synthesis of 3-aryl-2h-benzo[b]-1,4-oxazines in [omim]bf4 and reduction of organic compounds in methylimidazolium formate

در این پروژه ترکیبات 3-آریل-2h-بنزو[b]-4،1-اکسازین ها از مواد اولیه تجاری مشتقات دو آمینو فنول و ?-هالو کتون های آروماتیک در مایع یونی 1-اکتیل-3-متیل ایمیدازولیوم تترا فلورو بورات([omim]bf4) سنتز شده است. این واکنش توسط باز پتاسیم کربنات محلول از طریق o-آلکیلاسیون و سپس یک واکنش آمیداسیون درون مولکولی خود بخود در مدت زمان کوتاه انجام می شود. ترکیبات 4،1-بنزوکسازین به این روش با بهره خوب تا آلی ...

Effects of Chlorine, Bromine, and Fluorine on the Tobacco Plant ^

A considerable body of data is available on the influence of the element chlorine, applied as chlorides, upon the growth of crop plants. No special investigation, however, appears to have been made of the influence of the closely related elements, bromine and fluorine. The object of much of the work with chlorine has been to determine whether chlorides are beneficial or harmful to the crop. The...

Sulfur Compounds: Gas Chromatography

(tetrahydrofuran) at 703C for 16 h. The ester residue is then converted to a 6,6-dideuteriohexose residue, the O-methyl ethers of which are easily distinguishable by GC-MS of the derived alditol acetates. An alternative to acid hydrolysis that is applicable to most polysaccharides and glycoconjugates, including those containing acid-labile residues or glycosidic linkages resistant to hydrolysis...