Liquid/gas phase detection system.Focuses on the system from Imo Industries which detects interstage phase change from liquid to gas within a multistage pumping machines. How the method was developed by John R. DiRe of Imo; Features and functions of the system; How the field testing for the ...
A calibration system for measuring gas-phase hydroxyl radicals (OH) was established by liquid- phase scrubbing and high performance liquid chromatography (HPLC). It was based on the OH reaction with salicylic acid which produces a stable fluorescent product, 2,5 -dihydroxybenzoic acid determined by...
Phase Transition Near a Liquid-Gas Coexistence Equilibrium Effects of small perturbations from a liquid-gas coexistence equilibrium (the Maxwell states) is studied for an isothermal (or isentropic) gas-liquid phase... Xinfu Chen and Xiao-Ping Wang - 《Siam Journal on Applied Mathematics》 被引量...
10 mM ammonium formate containing 0.1% formic acid was used as mobile phase A, 0.1% formic acid and acetonitrile was used as mobile phase B. Figure 1-A showed that the chromatographic of cantharidin by this method and interference peaks were found. Then we replace the chromatographic column...
We developed a flexible and extensible, mechanistically based model to aid in understanding these processes. The model allows for multiple chemical species in each phase, multiple chemical reactions among species within each phase, and mass transfer between the gas and aqueous phases. We implemented ...
A procedure for the determination of traces of mercury by liquid-phase microextraction based on solidification of a floating organic droplet for separation and electrothermal atomic absorption spectrometry for final measurement has been developed. For this purpose, 50L of pre-heated (50°C) undecanoic ...
动态液相微萃取-气相色谱法测定水样中有机磷农药残留 金晓英袁东星 * (厦门大学近海海洋环境科学国家重点实验室,厦门大学环境科学研究中心,厦门361005) 摘要建立了水样中敌敌畏、二嗪农、毒死蜱、甲基对硫磷和对硫磷等5种有机磷农药的动态液相微萃取- 气相色谱检测方法。实验表明甲苯是良好的萃取溶剂,甲苯体积为2!L...
Sulfa liquid phase detection, Total:5 items.In the international standard classification, Sulfa liquid phase detection involves: Food products in general, Meat, meat products and other animal produce, Sugar. Sugar products. Starch, Terminology (principles and coordination)....
Get the wavelet energy and then train them in the model of BP neural network to distinguish the flow patterns.Introduced the implant gray neural networks model and use it for the two phase flow for the first time.At the same time,set up the method of training the pressure data and wavelet...
A drop-based liquid phase microextraction and gas chromatographic-electron capture detection (GC-ECD) method was described for the determination of chlorobenzenes including chlorobenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene and 1,2,3-trichlorobenzene in 5 ml of water. The ...