Seminars/Short Course

Short course at the 2022 Winter Conference on Plasma Spectrochemistry: New Calibration Strategies in Spectrochemical Analysis

Instructor: George L. Donati, Department of Chemistry, WFU 
E-mail: donatigl@wfu.edu
When: Tuesday, January 18, 2022, 7-11 pm.
Where: 2022 Winter Conference on Plasma Spectrochemistry. Hotel El Conquistador Tucson, Tucson, Arizona

Course objectives

* Discuss the fundamental concepts of least-squares regression, and the advantages and limitations of the traditional external standard calibration, internal standardization and standard additions methods.

* Introduce new approaches to calibration such as the interference standard (IFS), standard dilution analysis (SDA), and multi-energy (MEC), multi-isotope (MICal), and multispecies (MSC) calibration methods.

* Discuss the theoretical basis of each new strategy, as well as their application in atomic absorption, atomic emission and inorganic mass spectrometry.

* Provide the basic knowledge in calibration methods to enable informed decisions on the most appropriate strategy to solve the analytical problem at hand.

Suggested literature

1. G. L. Donati and R. S. Amais, Fundamentals and new approaches to calibration in atomic spectrometry, J. Anal. At. Spectrom. 34(12) (2019) 2353-2369.

2. J. A. Carter, A. I. Barros, J. A. Nóbrega and G. L. Donati, Traditional calibration methods in atomic spectrometry and new calibration strategies for inductively coupled plasma mass spectrometry, Front. Chem. 6 (2018) Art. 504, 25p

3. G. L. Donati, R. S. Amais and J. A. Nóbrega, Interference standard: a new approach to minimizing spectral interferences in inductively coupled plasma mass spectrometry, J. Anal. At. Spectrom. 26(9) (2011) 1827-1832.

4. W. B. Jones, G. L. Donati, C. P. Calloway Jr. and B. T. Jones, Standard dilution analysis, Anal. Chem. 87(4) (2015) 2321-2327.

5. A. Virgilio, D. A. Gonçalves, T. McSweeney, J. A. Gomes Neto, J. A. Nóbrega and G. L. Donati, Multi-energy calibration applied to atomic spectrometry, Anal. Chim. Acta 982 (2017) 31-36.

6. A. Virgilio, J. A. Nóbrega and G. L. Donati, Multi-isotope calibration for inductively coupled plasma mass spectrometry, Anal. Bioanal. Chem. 410(3) (2018) 1157-1162.

7. C. B. Williams and G. L. Donati, Multispecies calibration: a novel application for inductively coupled plasma tandem mass spectrometry, J. Anal. At. Spectrom. 33 (5) (2018) 762-767.

8. A. Virgilio, A. B. S. Silva, A. R. A. Nogueira, J. A. Nóbrega and G. L. Donati, Calculating limits of detection and defining working ranges for multi-signal calibration methods, J. Anal. At. Spectrom. 35(8) (2020) 1614-1620.

9. J. T. Sloop, D. A. Gonçalves, L. M. O’Brien, J. A. Carter, B. T. Jones and G. L. Donati, Evaluation of different approaches to applying the standard additions calibration method, Anal. Bioanal. Chem. 413(5) (2021) 1293-1302.

Outline

This is a four-hour course . There will be opportunity for hands-on data processing using MS Excel and ICP OES, ICP-MS, MIP OES and HR-CS FAAS experimental results. Thus, you will need a computer with MS Excel installed for in-class exercises. Below is a list of topics to be covered in the course.

1. Calibration and least-squares regression
2. Traditional calibration methods
  2.1. External standard calibration (EC)
  2.2. Standard additions (SA)
  2.3. Internal standard (IS)
3. New calibration methods for spectrochemical analysis
  3.1. The interference standard method (IFS)
  3.2. Standard dilution analysis (SDA)
  3.3. Multi-energy calibration (MEC)
  3.4. Multi-isotope calibration (MICal)
  3.5. Multispecies calibration (MSC)
4. Analyte estimation for calibration methods with both variables subject to error

Department of Chemistry at Eastern Kentucky University: Fundamentals and new approaches to calibration in atomic spectrometry

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5th BrJAC Webinar: Re-imagining standard additions and internal standardization for more efficient calibration methods

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