SAI Life Sciences Interview Questions, Process, and Tips

The criteria for selecting a reactor for a particular reaction depend on factors such as reaction kinetics, reactant properties, desired product, safety considerations, and economic feasibility.

• Reaction kinetics: The reaction rate and mechanism influence the choice of reactor type.

• Reactant properties: The physical and chemical properties of reactants, such as solubility, viscosity, and heat sensitivity, determine the r...read more

Boundary layer is a thin layer of fluid near a surface where the flow is affected by friction and viscosity.

• Boundary layer plays a crucial role in determining the drag force on an object moving through a fluid.

• It affects the heat transfer between the surface and the fluid.

• It can also cause separation of the flow from the surface, leading to turbulence and reduced efficiency.

• Examples include the boundary layer on an air...read more

Mass balance for a distillation column involves accounting for the input and output streams of the column.

• Mass balance equation: Input = Output + Accumulation

• Input streams include feed, reflux, and steam

• Output streams include distillate and bottoms

• Accumulation can be calculated as the difference between input and output streams

• The mass balance equation can be used to optimize the column's performance

I have the necessary skills and experience to excel in this role.

• I have a strong background in process engineering and have successfully implemented process improvements in my previous roles.

• I am highly analytical and detail-oriented, which allows me to identify and solve complex problems efficiently.

• I have excellent communication and leadership skills, which are essential for collaborating with cross-functional teams ...read more

I am a highly experienced Process Engineer Executive with a strong background in optimizing manufacturing processes and driving operational efficiency.

• Over 10 years of experience in process engineering and management

• Expertise in implementing Lean Six Sigma methodologies to improve productivity and reduce waste

• Proven track record of successfully leading cross-functional teams and achieving cost savings

• Implemented proces...read more

N-alkylation is a process of adding an alkyl group to a primary or secondary amine.

• N-alkylation can be achieved through various methods such as reductive amination, Gabriel synthesis, and Hoffmann degradation.

• Primary amines can be selectively N-alkylated using alkyl halides and a base, while secondary amines require a more reactive alkylating agent such as an epoxide or an alkyl halide.

• N-alkylation is an important reac...read more

LCMS stands for Liquid Chromatography Mass Spectrometry. It is a technique used to separate, identify and quantify components in a mixture.

• LCMS involves the use of a liquid chromatography column to separate the components of a mixture based on their chemical properties.

• The separated components are then ionized and passed through a mass spectrometer to determine their mass-to-charge ratio.

• LCMS is commonly used in drug d...read more

C18 and C4 are commonly used reversed-phase columns in LCMS.

• C18 and C4 refer to the type of stationary phase used in the column.

• C18 has longer carbon chains and is more hydrophobic than C4.

• C18 is commonly used for separating nonpolar compounds while C4 is used for separating polar compounds.

• Other types of columns include C8, phenyl, and cyano columns.

• The choice of column depends on the properties of the analyte and the