CHOKE
发表于 2025-3-30 09:44:22
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Cpap155
发表于 2025-3-30 14:20:12
Quantitative Aspects of Flavour Analysis by Equilibrium and Dynamic Head-Space Gas Chromatography wvolatile ones by breakthrough in the adsorption tube are discussed also. In cases of mixtures with a wide range of volatilities, where the sample transfer can hardly be quantitative, the application of the MHE principle is suggested as a possible solution.
Ischemia
发表于 2025-3-30 18:47:26
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aviator
发表于 2025-3-30 22:27:46
Progress in Isolation Techniques for Essential Oil Constituents,e of TLC, and at ambient temperature, the destructive temperatures needed in GLC are avoided and degradation products are not encountered..In addition to HPLC the relatively newly developed DCCC and RLCC can be used for separating essential oils into fractions or in the ideal case into individual pu
旧病复发
发表于 2025-3-31 00:59:14
The Influence of Isolation Conditions on the Composition of Essential Oils Containing Linalool and er the GC analyses difficult. We applied therefore a gas phase stripping for the isolation of the volatiles. The combination of solvent extraction and gas phase stripping yielded an essential oil, the composition of which was qualitatively and quantitatively comparable to the genuine one, since arti
前面
发表于 2025-3-31 07:36:02
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insurrection
发表于 2025-3-31 13:12:14
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以烟熏消毒
发表于 2025-3-31 15:57:32
Quantitative Headspace Gas Chromatography in the Analysis of Volatile Oils and Aromatic Plants,temperature, the vapour pressure of the components, etc. In order to optimize quantitative HSGC determinations, these parameters must be taken into account. In the present study the effects of these parameters as well as the effects of varying calibration methods were investigated..Various herbs and
坦白
发表于 2025-3-31 20:59:55
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轻浮女
发表于 2025-3-31 23:22:41
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