In cohesive sentences explain the difference between SIM versus SRM in LC-MS and GC-MS.
In LC-MS and GC-MS;
SIM indicates selected ion monitoring in which mass spectrometer is adjusted to scan in a very small mass range. Only compounds of specific mass are detected and recorded. The SIM is more sensitive in comparison to full scan measurement.
SRM is selected reaction monitoring and is used for quantification using mass spectrometer.Through this an unique ion is monitored and quantified from the complicated matrix. This is highly specific and sensitive technique and is used for quantitation of biological samples like proteins, peptides etc., SRM unlike SIM is a product ion scan which is related to monitoring and detection of daughter ions.
In cohesive sentences explain the difference between SIM versus SRM in LC-MS and GC-MS.
For urine drug testing, which method is better? GC-MS vs LC-MS?
In cohesive sentences explain how Size Exclusion Chromatography (SEC) works.
In cohesive sentences explain the factors affecting Van Deemter equation and its practical significance in chromatography.
in cohesive sentences explain how Differential Scanning Calorimetry (DSC) instrument works. Illustrate your explanation with a simple but realistic drawing. What kind of physical properties can be measured with DSC? What are the differences between Differential Scanning Calorimetry (DSC) vs Differential Thermal Analysis (DTA)?
Describe in 3 or 4 sentences the difference between debt-based versus non debt-based fiat systems. Provide examples of both
in cohesive sentences explain how Thermogravimentric Analysis (TGA) instrument works (for example TA Instruments TGA5500). Illustrate your explanation with a simple but realistic drawing.
What is the difference between a histogram and bar chart? (Explain in at least 4 sentences) What is the difference between a pie chart (circle) and a bar graph? When should you use a pie chart instead of a bar chart? (Answer in at least 5 sentences)
In cohesive sentences explain how Quadruple Ion Trap Mass Analyzer works. Illustrate your explanation with a simple but realistic drawing. What are the differences in 3D vs Linear (2D) Ion Traps?
explain the difference between an aqueous acid that is strong versus one that is weak.
Briefly explain the difference between an energy transfer versus a charge transfer.