نتایج جستجو برای: p toluene methyl sulfonate
تعداد نتایج: 1377185 فیلتر نتایج به سال:
Introduction: Due to the widespread use of toxic chemicals in most workplaces that can lead to toxic effects on human, various chemical extraction technique have been defined for analysis these toxic substances in air, water and biological samples. The purpose of this research is extraction of toluene and methyl ethyl ketone from aquatic samples with needle trap device and one co...
Background and Aims:Nowadays, many different techniques to extraction of chemical compounds from aquatic samples have been introduced, for examples techniques based on the use of needles that were packed with some sorbents. Considering that so far no synthesis sorbent based on single-walled carbon nanotubes and sol-gel techniques for the extraction of toluene and methyl ethyl ketone from ...
In the title compound, C(15)H(14)F(2)O(3)S, the dihedral angle between the aromatic rings is 6.19 (13)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds, generating [110] chains.
Poly(ethylene oxide) (PEO) bonded stationary phase has been synthesized by a single and simple step reaction. glycol monomethyl ether p-toluene sulfonate) (tosylated-PEO, molecular weight 900, n ≈ 18) was chemically to 3-aminopropyl silica (TSKgel NH2-60, 5 µm particle size, 60 Å mean pore diameter). The prepared able separate polar compounds such as phenolics nucleobases in capillary liquid ch...
Pseudomonas sp. strain JS6 grows on chlorobenzene, p-dichlorobenzene, or toluene as a sole source of carbon and energy. It does not grow on p-chlorotoluene (p-CT). Growth on glucose in the presence of p-CT resulted in the accumulation of 4-chloro-2,3-dihydroxy-1-methylbenzene (3-chloro-6-methylcatechol), 4-chloro-2,3-dihydroxy-1-methylcyclohexa-4,6-diene (p-CT dihydrodiol), and 2-methyl-4-carbo...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید