Corrigendum to “Facile synthesis of porous hydrated magnesium silicate adsorbent from ordinary silica gel” [Mater. Lett. 272 (2020) 127886]

2021 ◽  
Vol 285 ◽  
pp. 129124
Author(s):  
Zhiwei Sun ◽  
Yanhua Liu ◽  
Wei Hong
Keyword(s):  
Silica Gel ◽  
Magnesium Silicate ◽  
Facile Synthesis ◽  
Hydrated Magnesium Silicate

A One-pot Facile Synthesis of 2,3-Dihydroxyquinoxaline and 2,3-Dichloroquinoxaline Derivatives Using Silica Gel as an Efficient Catalyst

2018 ◽  
Vol 55 (7) ◽  
pp. 1809-1814 ◽  
Author(s):  
Pei-Ming Zhang ◽  
Yao-Wei Li ◽  
Jing Zhou ◽  
Lin-Ling Gan ◽  
Yong-Jie Chen ◽  
...  
Keyword(s):  
Silica Gel ◽  
Facile Synthesis ◽  
One Pot ◽  
Efficient Catalyst

scholarly journals Low-Cost Investment with High Quality Performance. Bleaching Earths for Phosphorus Reduction in the Low-Temperature Bleaching Process of Rapeseed Oil

Foods ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 603 ◽  
Author(s):  
Barbara Łaska-Zieja ◽  
Damian Marcinkowski ◽  
Wojciech Golimowski ◽  
Gniewko Niedbała ◽  
Ewelina Wojciechowska
Keyword(s):  
Low Temperature ◽  
Rapeseed Oil ◽  
Low Cost ◽  
Magnesium Silicate ◽  
Industrial Plant ◽  
Bleaching Process ◽  
Low Efficiency ◽  
Hydrated Magnesium Silicate ◽  
Cold Pressed ◽  
Phosphorus Reduction

Rapeseed oils are a valuable component of the diet. Mostly, there are refined oils deprived of valuable nutrients in the market, hence in recent times cold-pressed and unrefined oils have been available and popular among consumers. However, the low yield of this oil makes this product expensive. The aim of the study was to analyse the effectiveness of phosphorus reduction in crude oils, cold- and hot-pressed in the low-temperature bleaching process. Eight market-available bleaching earths was compared. The effectiveness of 90% was found with 2% (m/m) of Kerolite with hydrated magnesium silicate. An increase in the share of earths to 4% (m/m) resulted in the effectiveness of phosphorus reduction >90% in seven out of eight analysed cases. Bentonite activated with acid with the lowest MgO content was characterised by low efficiency <64%. The research shows that the effectiveness of phosphorus reduction was significantly affected by the composition of earths applied in the bleaching process at ambient temperature. The results of research confirm the high effectiveness of the process as it is not necessary to heat up the oil before the bleaching process. This method is recommended for existing and new industrial plant for two-stage rapeseed oil pressing.

Spatial distribution and content detection of gefitinib in tablets using confocal micro-raman spectroscopy mapping

2020 ◽  
Vol 10 (9) ◽  
pp. 1444-1451
Author(s):  
Li Ma ◽  
Chun-Hua Zhou ◽  
Bo Yang ◽  
Xu Han ◽  
Ying-Chun Cui
Keyword(s):  
Raman Spectroscopy ◽  
Spatial Distribution ◽  
Magnesium Silicate ◽  
Accurate Identification ◽  
Scanning Method ◽  
Live Video ◽  
Video Imaging ◽  
Micro Raman Spectroscopy ◽  
Spectral Bands ◽  
Hydrated Magnesium Silicate

In this study, we aim at establishing a method to evaluate the spatial distribution and content of gefitinib in tablets without destroying the tablets. The content of gefitinib tablets was determined by HPLC. Using confocal micro-Raman spectroscopy, with a wavelength of 785 nm and power of 10%, gefitinib, starch, and hydrated magnesium silicate were scanned. Tablets with five concentrations of gefitinib (15.63–31.25%) were scanned with a 1000 × 1000 μm spectral resolution and live video imaging was performed. The surfaces of gefitinib tablets were scanned and images were obtained by a continuous scanning method. Characteristic Raman spectra of tablets were obtained after surface scanning and map reviews of tablets with five concentrations of gefitinib for rapid and accurate identification. The characteristic spectral bands of gefitinib, starch, and hydrated magnesium silicate were 1620 cm–1, 480 cm–1, 1350 cm–1 respectively. Comparing the surfaces of the tablets, it was found that the tablets with a flat and round surface are more suitable for Raman spectroscopy. Live video imaging and scanning maps of five concentrations of gefitinib were performed. The results showed that the product with the content of 16.12% had a good mixing homogeneity. In conclusion, confocal micro-Raman spectroscopy can detect the spatial distribution and content of gefitinib tablets without destroying tablets.

Effect of Moisture on Chromatographic Properties of Synthetic Hydrated Magnesium Silicate

1952 ◽  
Vol 24 (10) ◽  
pp. 1670-1671 ◽  
Author(s):  
M. L. Wolfrom ◽  
Alva Thompson ◽  
T. T. Galkowski ◽  
E. J. Quinn
Keyword(s):  
Magnesium Silicate ◽  
Effect Of Moisture ◽  
Hydrated Magnesium Silicate

Facile Synthesis of Hierarchical Magnesium Silicate Hollow Nanofibers Assembled by Nanosheets as an Efficient Adsorbent

ChemPlusChem ◽  
2014 ◽  
Vol 80 (3) ◽  
pp. 544-548 ◽  
Author(s):  
Renxi Jin ◽  
Yang Yang ◽  
Yunfeng Li ◽  
Xiaodan Yu ◽  
Yan Xing ◽  
...  
Keyword(s):  
Magnesium Silicate ◽  
Facile Synthesis ◽  
Hollow Nanofibers ◽  
Efficient Adsorbent
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