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Printed stationary: A novel process for 3D printing ion-exchange stationary phases

Date: Jan 14, 2019

Author: Jon Evans

Two researchers in the UK have come up with a method for producing ion-exchange chromatography stationary phases with defined, regular architectures by 3D printing.

Read More thumbnail image: Printed stationary A novel process for 3D printing ion-exchange stationary phases

Journal Highlight: Production and characterization of β‐cyclodextrin glucanotransferase from Bacillus sp. ND1

Date: Jan 9, 2019

Author: separationsNOW

Indian scientists have used ion exchange chromatography to help purify the enzyme β‐CGTase, which could prove of use in several industrial processes, after it was derived from a bacterium found in sugarcane field soil in India .

Read More thumbnail image: Journal Highlight Production and characterization of cyclodextrin glucanotransferase from Bacillus sp_ ND1

Journal Highlight: Evaluating sulfates and nitrates as enemies of the recent constructions: Spectroscopic and thermodynamical study

Date: Dec 24, 2018

Author: separationsNOW

An international team of scientists used ion chromatography to help determine the impact of soluble salts on the degradation of buildings and other constructions.

Read More thumbnail image: Journal Highlight Evaluating sulfates and nitrates as enemies of the recent constructions Spectroscopic and thermodynamical study

All at sea with vanadium: Measuring the ratio of vanadium isotopes in seawater

Date: Dec 10, 2018

Author: Jon Evans

By taking advantage of ion-exchange chromatography, a team of US scientists has helped vanadium to become a useful chemical proxy for measuring past oxygen levels in the oceans.

Read More thumbnail image: All at sea with vanadium Measuring the ratio of vanadium isotopes in seawater

Journal Highlight: TLC‐MALDI‐TOF‐MS‐based identification of flavonoid compounds using an inorganic matrix

Date: Dec 3, 2018

Author: separationsNOW

French researchers have combined thin layer chromatography with matrix‐assisted laser desorption ionisation time‐of‐flight mass spectrometry to analyze the flavonoid compounds in extracts from plants such as rose.

Read More thumbnail image: Journal Highlight TLCMALDITOFMSbased identification of flavonoid compounds using an inorganic matrix

Journal Highlight: Cathepsin L causes proteolytic cleavage of Chinese‐hamster‐ovary cell expressed proteins during processing and storage

Date: Nov 26, 2018

Author: separationsNOW

Scientists from MedImmune have tested the ability of affinity, cation exchange, anion exchange and mixed mode chromatography to separate the protease Cathepsin L from therapeutic proteins, in order to prevent fragmentation.

Read More thumbnail image: Journal Highlight Cathepsin L causes proteolytic cleavage of Chinesehamsterovary cell expressed proteins during processing and storage

Under pressure: Creating a pressure-driven flow with electroosmotic flow

Date: Nov 12, 2018

Author: Jon Evans

Scientists in the US have developed a way to generate a pressure-driven flow directly on an ion chromatography microchip by taking advantage of electroosmotic flow.

Read More thumbnail image: Under pressure Creating a pressure-driven flow with electroosmotic flow

Journal Highlight: Contribution of hydroxymethane sulfonate to ambient particulate matter: A potential explanation for high particulate sulfur during severe winter haze in Beijing

Date: Nov 5, 2018

Author: separationsNOW

Researchers from the US and China have shown that ion chromatography methods for measuring ambient particulates in the atmosphere can easily misinterpret hydroxymethane sulfonate as sulfate.

Read More thumbnail image: Journal Highlight Contribution of hydroxymethane sulfonate to ambient particulate matter A potential explanation for high particulate sulfur during severe winter haze in Beijing

Journal Highlight: Staphylococcus aureus lipase: purification, kinetic characterization, crystallization and crystallographic study

Date: Oct 22, 2018

Author: separationsNOW

Japanese scientists used immobilized metal‐affinity chromatography, cation‐exchange chromatography and anion‐exchange chromatography to isolate and purify a lipase from the bacterium Staphylococcus aureus, a common cause of food poisoning.

Read More thumbnail image: Journal Highlight Staphylococcus aureus lipase purification kinetic characterization crystallization and crystallographic study

Acid taste of honey: A novel ion chromatography method for analyzing organic acids in honey

Date: Oct 8, 2018

Author: Jon Evans

Chemists from Singapore and Saudi Arabia have developed a simple, potentially portable ion chromatography method for extracting and analyzing the organic acids in raw, undiluted honey.

Read More thumbnail image: Acid taste of honey A novel ion chromatography method for analyzing organic acids in honey
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