Search for tag: "calibration"

VEN123L Video 9.1 - Limits of Detection and Quantification

What's the lowest concentration that a method or instrument can detect, and what's the lowest it can measure? What's the difference? How do we determine the limits of detection and…

From  Thi Nguyen on November 20th, 2020 0 likes 81 plays 0  

VEN123L Video 7.4 - Internal Standardization

What is internal standardization and what makes a good internal standard? Why does it work and how is it done? Copyright Thi Nguyen Do not distribute without permission thinguy@ucdavis.edu

From  Thi Nguyen on November 2nd, 2020 0 likes 62 plays 0  

VEN123L Video 6.2 - Evaluating Linearity - Residual Plots

Might R-squared values be a bit misleading? How should we evaluate the linearity of calibration curves? How do we create residual plots and use them to check for linearity? Copyright Thi Nguyen Do…

From  Thi Nguyen on November 1st, 2020 0 likes 98 plays 0  

VEN123L Video 7.2 - Ethanol - GC-FID

How do gas chromatography and flame ionization detection work? What is internal standardization and what is its purpose? Copyright Thi Nguyen Do not distribute without permission …

From  Thi Nguyen on October 30th, 2020 0 likes 105 plays 0  

VEN123L Video 5.4 - Calibration - Linear Least Squares Regression

What is calibration? What's going on when Excel fits a trendline to data? How do we translate instrumental response (e.g. absorbance) into concentration? Copyright Thi Nguyen Do not distribute…

From  Thi Nguyen on October 24th, 2020 0 likes 92 plays 0  

VEN123L Video 5.3 - Free Alpha-Amino Nitrogen - Analysis

How do we prepare juice samples for the analysis of free alpha-amino nitrogen? How do we perform dilutions? How do we deal with sample background noise during spectrophotometric analysis? How do we…

From  Thi Nguyen on September 2nd, 2020 0 likes 115 plays 0  

VEN123L Video 5.2 - Free Alpha-Amino Nitrogen - Calibration

What is calibration? How do we prepare standards for external calibration and how do we make a calibration curve? How do we give the spectrophotometer a baseline, to measure just what we're…

From  Thi Nguyen on August 31st, 2020 0 likes 124 plays 0  

VEN123L Video 3.1 - Measuring pH

Why do we measure pH? How does a pH meter work? How do we prepare a pH meter for use and make sure it's functioning properly? Copyright Thi Nguyen Do not distribute without permission …

From  Thi Nguyen on August 31st, 2020 0 likes 116 plays 0  

Nathan Soland First Research Talk (2020 Larock Conference, Physical/Analytical Presentation #5)

Title: High-Throughput Differential Thermal Analysis for Accelerating the Development of Single Crystal Synthesis Routes Authors: Nathan Soland, Peter Klavins, and Valentin Taufour Abstract:…

From  Lee-Ping Wang on May 16th, 2020 0 likes 8 plays 0