Global Calcium Executive Interview Questions and Answers

pH indicators, name reactions, and acid-base differentiation are important topics in chemistry.

• pH indicators are substances that change color depending on the pH of the solution they are in, such as litmus paper or phenolphthalein.

• Name reactions are specific chemical reactions that have been named after their discoverers or developers, such as the Grignard reaction or the Friedel-Crafts reaction.

• Acid-base differentiati...read more

There are several types of HPLC (High Performance Liquid Chromatography) used in analytical chemistry.

• Reverse Phase HPLC

• Normal Phase HPLC

• Ion Exchange HPLC

• Size Exclusion HPLC

• Affinity HPLC

• Chiral HPLC

• Hydrophilic Interaction Chromatography (HILIC)

• Hydrophobic Interaction Chromatography (HIC)

• Reversed-Phase Ion Pairing Chromatography (RP-IPC)

• Fast Protein Liquid Chromatography (FPLC)

The column used in HPLC is a crucial component that separates and analyzes compounds in a liquid sample.

• The column in HPLC is packed with stationary phase particles that interact with the sample components.

• Different columns with varying properties are used depending on the analytes and separation requirements.

• Common types of columns include reverse phase, normal phase, ion exchange, and size exclusion columns.

• For examp...read more

HPLC is used in chemistry to separate, identify, and quantify components of a mixture.

• HPLC is a powerful analytical technique used in various industries such as pharmaceuticals, food and beverage, environmental analysis, and forensic science.

• It is used to separate and purify complex mixtures into individual components.

• HPLC can identify and quantify the amount of each component present in a sample.

• It is highly sensitive...read more

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