Chemical Modification of Amberlite XAD-2 by Immobilization of Calcein Blue for Extractive Concentration of Lead(II) Ion in Environmental Samples

2012 ◽  
Vol 32 (S1) ◽  
pp. E462-E473 ◽  
Author(s):  
Elham Moniri ◽  
Homayon Ahmad Panahi ◽  
Meghdad Karimi ◽  
Nasir Ahmad Rajabi ◽  
Mohammad Faridi
Keyword(s):  
Chemical Modification ◽  
Environmental Samples ◽  
Calcein Blue

Pollutant Identification by Selected Area Electron Diffraction

1974 ◽  
Vol 32 ◽  
pp. 532-533
Author(s):  
R. E. Ferrell ◽  
G. G. Paulson ◽  
C. W. Walker
Keyword(s):  
Thermal Treatment ◽  
Electron Diffraction ◽  
Sample Preparation ◽  
Crystal Structures ◽  
Water Samples ◽  
Environmental Samples ◽  
Short Review ◽  
Selected Area Electron Diffraction ◽  
Multiple Component

Selected area electron diffraction (SAD) has been used successfully to determine crystal structures, identify traces of minerals in rocks, and characterize the phases formed during thermal treatment of micron-sized particles. There is an increased interest in the method because it has the potential capability of identifying micron-sized pollutants in air and water samples. This paper is a short review of the theory behind SAD and a discussion of the sample preparation employed for the analysis of multiple component environmental samples.

Photoconductivity in Vacuum Deposited Films of Silicon-Based Polymers

1996 ◽  
Vol 444 ◽  
Author(s):  
H. Okumoto ◽  
M. Shimomura ◽  
N. Minami ◽  
Y. Tanabe
Keyword(s):  
Charge Transfer ◽  
Chemical Modification ◽  
Electronic Transport ◽  
Hole Transport ◽  
Electron Acceptors ◽  
Oxygen Atmosphere ◽  
Dangling Bonds ◽  
Silicon Based ◽  
Deposited Films

AbstractSilicon-based polymers with σconjugated electrons have specific properties; photoreactivity for microlithography and photoconductivity for hole transport materials. To explore the possibility of combining these two properties to develop photoresists with electronic transport capability, photoconductivity of polysilanes is investigated in connection with their photoinduced chemical modification. Increase in photocurrent is observed accompanying photoreaction of poly(dimethylsilane) vacuum deposited films. This increase is found to be greatly enhanced in oxygen atmosphere. Such changes of photocurrent can be explained by charge transfer to electron acceptors from Si dangling bonds postulated to be formed during photoreaction.

Estimation of desorption ratios of radio/stable caesium from environmental samples (aerosols and soils) leached with seawater, diluted seawater and ultrapure water

2018 ◽  
Vol 52 (2) ◽  
pp. 187-199 ◽  
Author(s):  
Aya Sakaguchi ◽  
Haruka Chiga ◽  
Kazuya Tanaka ◽  
Haruo Tsuruta ◽  
Yoshio Takahashi
Keyword(s):  
Environmental Samples ◽  
Ultrapure Water

Chemical modification of lignin-rich paper

1998 ◽  
Vol 13 (2) ◽  
pp. 124-131 ◽  
Author(s):  
Magnus Paulsson ◽  
Arthur J. Ragauskas
Keyword(s):  
Chemical Modification

Chemical modification of lignin-rich paper

1996 ◽  
Vol 11 (2) ◽  
pp. 109-114 ◽  
Author(s):  
Magnus Paulsson ◽  
Shiming Li ◽  
Knut Lundquist ◽  
Rune Simonson ◽  
Ulla Westermark
Keyword(s):  
Chemical Modification

Chemical modification of lignin-rich paper

1995 ◽  
Vol 10 (1) ◽  
pp. 62-67 ◽  
Author(s):  
Magnus Paulsson ◽  
Rune Sirnonson ◽  
Ulla Westermark
Keyword(s):  
Chemical Modification
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