Instrumental analysis - Study guides, Class notes & Summaries

Instrumental Analysis ACS Final Prep Exam Questions With Correct Answers what are the difference between calibration sensitivity and analytical sensitivity - answercalibration sensitivity is the slope of a calibration curve at the concentration of interest while analytical sensitivity is a response to the noise ratio how to calculate calibration sensitivity - answery=mx+b (m is the calibration sensitivity) graph concentration vs mean analytical signal how to find the analytical sensitivit...

Instrumental Analysis ACS Exam Final With Complete Solutions 2024 What is linear range? - answerAnalyte concentration over the response that is proportional to the concentration. When analyzing an unknown where should the concentration of the unknown fall? - answerSomewhere within the linear range What should you do if the unknown concentration is below the linear range? - answerperform pre-concentration Examples of pre-concentration - answerevaporating, anodic stripping voltammetry Wha...

Analytical Chemistry - Study of separation, identification, and quantification of chemical components of a material. Standards - Solution of known concentration used to determine an unknown concentration. Instrumental Chemistry - A field within analytical chemistry that studies chemicals through the use of instruments. Forensic Chemistry - The application of chemistry to law enforcement. Separation Science - The theory and practice of separating molecules. Qualitative Analysis - Determini...

Instrumental Analysis ACS Exam Final With Complete Solutions 2024 What is linear range? - answerAnalyte concentration over the response that is proportional to the concentration. When analyzing an unknown where should the concentration of the unknown fall? - answerSomewhere within the linear range What should you do if the unknown concentration is below the linear range? - answerperform pre-concentration Examples of pre-concentration - answerevaporating, anodic stripping voltammetry Wha...

Instrumental Analysis ACS Final Prep Exam Questions With Correct Answers what are the difference between calibration sensitivity and analytical sensitivity - answercalibration sensitivity is the slope of a calibration curve at the concentration of interest while analytical sensitivity is a response to the noise ratio how to calculate calibration sensitivity - answery=mx+b (m is the calibration sensitivity) graph concentration vs mean analytical signal how to find the analytical sensitivit...

How to calculate signal to noise - Answer-S/N = mean/STDEV -inverse of RSD -STDEV: 5 (#STDEV gaussian curve) -STDEV: peak-to-peak noise/5 S/N relationships - Answer--increase S/N, increase run time -decrease noise, increase S/N Beer's Law - AnswerBeer's Law Calculations - AnswerHard ionization vs soft ionization - Answer--hard: no M+ peak (or small) -soft: M+ peak is visible MS: hard ionization sources - Answer--impart high quantities of residual energy in the subject molecule invokin...

Instrumental Analysis - Exam 1 Questions & Answers Verified 100% Correct!!

ACS Instrumental Analysis Exam/130 Questions and answers

Instrumental Analysis ACS Exam Questions With 100% Correct Answers How to calculate signal to noise - answerS/N = mean/STDEV -inverse of RSD -STDEV: 5 (#STDEV gaussian curve) -STDEV: peak-to-peak noise/5 S/N relationships - answer-increase S/N, increase run time -decrease noise, increase S/N Beer's Law - answer Beer's Law Calculations - answer Hard ionization vs soft ionization - answer-hard: no M+ peak (or small) -soft: M+ peak is visible MS: hard ionization sources - answer-i...

Instrumental Analysis Exam 2