Rapid Determination of Dissolved Copper in Jet Fuels Using Bathocuproine

2003 ◽  
Vol 17 (3) ◽  
pp. 699-704 ◽  
Author(s):  
Qin Lu ◽  
Jing-Fong Wei ◽  
Greg E. Collins ◽  
Robert E. Morris ◽  
Pamela M. Serino ◽  
...  
Keyword(s):  
Rapid Determination ◽  
Jet Fuels

scholarly journals Thermometric Titration for Rapid Determination of Trace Water in Jet Fuel

2017 ◽  
Vol 2017 ◽  
pp. 1-5 ◽  
Author(s):  
Jian-Qiang Hu ◽  
Jian-Jian Zhang ◽  
Shi-Zhao Yang ◽  
Yong-Liang Xin ◽  
Li Guo ◽  
...  
Keyword(s):  
Rapid Determination ◽  
Accurate Determination ◽  
Methanesulfonic Acid ◽  
Jet Fuel ◽  
Jet Fuels ◽  
Validity And Reliability ◽  
Whole Process ◽  
Thermometric Titration ◽  
Trace Water

Water content in jet fuels is detected by thermometric titration (TMT), and the optimal detected system is 2,2-dimethoxypropane as titrant, cyclohexane and isopropanol as titration solvents, and methanesulfonic acid as catalyst in this method. The amounts of oil, concentration and delivery rate of titrant, volumes, and the reliability and accuracy of thermometric titration were emphasized. The results show that the accuracy, validity, and reliability of TMT are excellent by different indicated spiked water contents. The obtained results between TMT and Karl Fischer titration have been proven to be in accord. But, the duration of titration merely spends 3–5 min in the whole process, greatly shortening the detected time. Therefore, rapid and accurate determination of trace water in a jet fuel can be realized by TMT.

Weak Beam Imaging and Diffraction Studies of Stacking Faults in Silicon

1976 ◽  
Vol 34 ◽  
pp. 590-591
Author(s):  
T. Y. Tan ◽  
W. K. Tice
Keyword(s):  
Fast Neutron ◽  
Rapid Determination ◽  
Stacking Faults ◽  
Imaging Method ◽  
Large Reduction ◽  
Dislocation Loops ◽  
Fringe Spacing ◽  
Weak Beam ◽  
Kinematical Theory

In studying ion implanted semiconductors and fast neutron irradiated metals, the need for characterizing small dislocation loops having diameters of a few hundred angstrom units usually arises. The weak beam imaging method is a powerful technique for analyzing these loops. Because of the large reduction in stacking fault (SF) fringe spacing at large sg, this method allows for a rapid determination of whether the loop is faulted, and, hence, whether it is a perfect or a Frank partial loop. This method was first used by Bicknell to image small faulted loops in boron implanted silicon. He explained the fringe spacing by kinematical theory, i.e., ≃l/(Sg) in the fault fringe in depth oscillation. The fault image contrast formation mechanism is, however, really more complicated.

Methods for rapid determination of pecan (Carya illinoensis) seed viability

2017 ◽  
Vol 45 (2) ◽  
pp. 455-464
Author(s):  
T.T. Xue ◽  
J. Liu ◽  
Y.B. Shen ◽  
G.Q. Liu
Keyword(s):  
Rapid Determination ◽  
Seed Viability ◽  
Carya Illinoensis
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