Gas chromatography Study guides, Class notes & Summaries

What does COLOR measure? Amount of color units (CU) in a sample. Color caused by natural metallic ions (Fe & Mg) & industrial wastes. What is the test summary for COLOR? Sample -> Tubes -> Compare to color standards over light source Which of the following techniques is used to isolate anionic surfactants (as MBAS) from the sample matrix? Extraction In the cyanide determination, which one of the following is not an interference? Halogenated aromatics Which...

Increase N - correct answers 1) Increase length of column 2) Optimize flow rate (Ux) to minimize H 3) Smaller packing bead diameter, uniform packing (A-term) 4) Thinner SP layer (less C term) 5) Open Tubular Liquid Chromo (No A) (A: more sensitive & resolution, fit more plate (N) shorter analysis D: small capacity) Absorption Chromatography - correct answers SP: Solid MP: Liquid or Gas Solutes move at different rates according to the forces of attraction to the stationary phase Parti...

ABMDI Board Certification Exam Questions and Answers 100% Pass Barbituates - Correct Answer ️️ -Four main categories: 1. Ultra-short-acting - used to induce surgical anesthesia 2. Short-acting 3. Intermediate-acting - used as sedative-hypnotics 4. Long-acting Butalbital - Correct Answer ️️ -Barbituate. Used in treatment of migraines. Phenobarbital - Correct Answer ️️ -Barbituate. Used as anticonvulsant. Pentobarbital - Correct Answer ️️ -Barbituate. Used to relieve intra...

V1 - correct answers volume of phase 1 (phase being extracted) V2 - correct answers volume of phase 2 (phase doing the extracting) [S]1= - correct answers Q*m/v1 [S]2= - correct answers (1-Q)*m/v2 if [H+]> Ka - correct answers D=k if [H+]< Ka - correct answers D=0 gas-gas chromatography - correct answers won't work because gases mix solid-solid chromatography - correct answers won't work because solids don't flow Velocity of solute - correct answers Vm* (1/1+K(Vs...

History of chromatography (ch 23) - correct answers -Greek word "chromatus" for color -Tswett (1903) first separated plant pigments Applications - correct answers Breast milk, water analysis, urinalysis for drug doping Goals of separation - correct answers Recovery of product, purity of product Type, SP, MP - correct answers 1. Adsorption: one polar substance sticks to another polar substance. Solid SP, gas or liquid MP 2. Partition: dissolving of 2 similar liquids. Liquid SP, gas o...

Complete Solutions Manual for Undergraduate Instrumental Analysis, 8th Edition by Thomas J. Bruno, James W. Robinson, George M. Frame II, Eileen Skelly Frame ; ISBN13: 9781032036915. (Full Chapters included Chapter 1 to 17).... 1. Concepts of Instrumental Analytical Chemistry 2. Safety in the Instrumentation Laboratory 3. Introduction to Spectroscopy 4. Visible and Ultraviolet Molecular Spectroscopy 5. Infrared, Near-Infrared, Raman, and Photoacoustic Spectroscopy 6. Magnetic Resonance Spe...

ABMDI Board Certification| 73 QUESTIONS AND ANSWERS WITH COMPLETE SOLUTIONS. Barbituates correct answer: Four main categories: 1. Ultra-short-acting - used to induce surgical anesthesia 2. Short-acting 3. Intermediate-acting - used as sedative-hypnotics 4. Long-acting Butalbital correct answer: Barbituate. Used in treatment of migraines. Phenobarbital correct answer: Barbituate. Used as anticonvulsant. Pentobarbital correct answer: Barbituate. Used to relieve intracranial pressure foll...

Mttc Integrated Science Life Sciences And General Knowledge Exam Test With 100% Correct Answers volumetric flask - CORRECT ANSWER-used to accurately prepare solutions of various concentrations often used in titrations erlenmeyer flask - CORRECT ANSWER-can be used for mixing, transporting, and reacting, but are not appropriate for accurate measurements repippette - CORRECT ANSWER-hand operated pump that dispenses solutions beakers - CORRECT ANSWER-can be used to measure mass or disso...

Gas Chromatography (GC) and GC-MS Chromatrography

Goals of Separation - correct answers recovery of product, purity of product Types of Chromatography - correct answers Adsorption - SP: solid, MP: gas/liquid Partitioning - SP: liquid, MP: gas/liquid Ion-Exchange - SP: bonded anion/cation, MP: liquid Molecular Exclusion - SP: has pores, MP: liquid Affinity - SP: antigen/antibody interactions, MP: liquid Electrophoretic - no SP Solvent Extractions based on - correct answers Some solvents are not miscible; "like dissolves like"; less ...