A novel catalyst containing a platinum complex in polyethylene glycol medium supported on silica gel for vapor-phase hydrosilylation of acetylene with trichlorosilane or trimethoxysilane

2002 ◽  
pp. 1634-1635 ◽  
Author(s):  
Masaki Okamoto ◽  
Hironari Kiya ◽  
Hiromi Yamashita ◽  
Eiichi Suzuki
Keyword(s):  
Polyethylene Glycol ◽  
Silica Gel ◽  
Vapor Phase ◽  
Platinum Complex ◽  
Novel Catalyst

Synthesis of polyethylene glycol functional bonded silica gel for selective recognition and separation of α-cyclodextrin

2021 ◽  
Vol 1639 ◽  
pp. 461917
Author(s):  
Xinying Zheng ◽  
Yang Qin ◽  
Xiaobing Meng ◽  
Zhengyu Jin ◽  
Liuping Fan ◽  
...  
Keyword(s):  
Polyethylene Glycol ◽  
Silica Gel ◽  
Selective Recognition

scholarly journals Spectrophotometric Determination of Iron(II) after Solid Phase Extraction of Its 2,2′ Bipyridine Complex on Silica Gel-Polyethylene Glycol

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Nahid Pourreza ◽  
Saadat Rastegarzadeh ◽  
Ali Reza Kiasat ◽  
Hossein Yahyavi
Keyword(s):  
Polyethylene Glycol ◽  
Solid Phase Extraction ◽  
Silica Gel ◽  
Limit Of Detection ◽  
Solid Phase ◽  
Extraction Procedure ◽  
Calibration Graph ◽  
Phase Extraction ◽  
Relative Standard

A new solid phase extraction procedure was developed for preconcentration of iron(II) using silica gel-polyethylene glycol (silica-PEG) as an adsorbent. The method is based on retention of iron(II) as 2,2′ bipyridine complex on silica-PEG. The retained complex is eluted by 1.0 mol L−1of sulfuric acid-acetone mixture (1:2) and its absorbance is measured at 518 nm, spectrophotometrically. The effects of different parameters such as pH, concentration of the reagent, eluting reagent, sample volume, amount of adsorbent, and interfering ions were investigated. The calibration graph was linear in the range of 1–60 ng mL−1of iron(II). The limit of detection based on3Sbwas 0.57 ng mL−1and relative standard deviations (R.S.D) for ten replicate measurements of 12 and 42 ng mL−1of iron(II) were 2.4 and 1.7%, respectively. The method was applied to the determination of of iron(II) in water, multivitamin tablet, and spinach samples.

VAPOR PHASE ESTERIFICATION IN PRESENCE OF SILICA GEL

1931 ◽  
Vol 53 (12) ◽  
pp. 4353-4358 ◽  
Author(s):  
Herbert C. Tidwell ◽  
E. Emmet. Reid
Keyword(s):  
Silica Gel ◽  
Vapor Phase

Vapor Phase Oxidation of Benzoic Acid to Phenol over a Novel Catalyst System Consisting of NiO and NiFe2O4

1995 ◽  
Vol 151 (2) ◽  
pp. 323-329 ◽  
Author(s):  
J. Miki ◽  
M. Asanuma ◽  
Y. Tachibana ◽  
T. Shikada
Keyword(s):  
Benzoic Acid ◽  
Vapor Phase ◽  
Catalyst System ◽  
Phase Oxidation ◽  
Novel Catalyst
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