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...
We note that Q appearing in Eqn.(7) depends on interactions through Zg and Zc values of Z which is exclusive representative of V (rij) in EOS (Eqn.(2)). Using Zg and Q as adjustable parameters we fix their values by using a simple process of iteration which renders Pr, ρg/ρc ...
In previous studies, gas chromatography (GC)16,17, gas chromatography-mass spectrometry(GC-MS)18,19,20, high-performance liquid chromatography(HPLC)21,22 and liquid chromatography tandem mass spectrometry(LC-MS)23 have been the methods used for cantharidin determination in plasma and pharmacokinetic ...
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 ...
Multi-colorimetric sensor array for detection of explosives in gas and liquid phase In the framework of the research project "Xsense" at the Technical University of Denmark (DTU) we are developing asimple colorimetric sensor array which ca... N Kostesha,TS Alstrøm,C Johnsen,... - Chemical...
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...
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...
Few authors measured these biomarkers in plasma or urine, and analysis was conducted either by gas chromatography coupled to mass spectrometry or liquid chromatography with UV detection. The objective of this study was thus to develop simple, sensitive and specific liquid chromatography-atmospheric ...
Fig. 1.Construction of detection flow cells and recorded signal reported for the pioneering application of electrochemical detections in liquid chromatography. (A) Potentiometric flow cell with the antimony oxide indicator electrode and recorded signal for normal-phase chromatography of hexanoic acid on al...