Liquid Chromatography and Contributors
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Questions and Answers

Which university is associated with Andre Campiglia?

  • Cornell University
  • Purdue University
  • University of Toronto
  • University of Central Florida (correct)

Who among the following contributed to the problems and analytical examples?

  • Tarek Farhat (correct)
  • John Smith
  • Samuel P. Kounaves (correct)
  • Michael DeGranpre (correct)

Which of the following individuals is associated with Brigham Young University?

  • Fred McLafferty
  • Gary Hieftje
  • Milton L. Lee (correct)
  • Carlos Garcia

Identify the colleague linked with Indiana University.

<p>Gary Hieftje (B)</p> Signup and view all the answers

Which individual represents the University of Washington?

<p>Thomas Leach (D)</p> Signup and view all the answers

What is a significant focus of the liquid chromatography chapter?

<p>It provides guidance for selecting suitable systems for specific applications. (B)</p> Signup and view all the answers

Which chapters have been extensively revised along with the liquid chromatography chapter?

<p>Chapters 16, 17, and 20 (A)</p> Signup and view all the answers

What kind of information has been added throughout the revised chapters?

<p>Historical context to understand the evolution of tools. (D)</p> Signup and view all the answers

What resource has been included in the text for performing complicated calculations?

<p>Powerful Excel programs. (A)</p> Signup and view all the answers

What type of educational material has been added to assist with Excel usage?

<p>Videos created by students. (A)</p> Signup and view all the answers

What additional access method is provided for videos in each chapter?

<p>QR Codes. (A)</p> Signup and view all the answers

What types of data can Excel programs in the text help plot?

<p>Titration curves and logC vs.pH. (B)</p> Signup and view all the answers

What is one of the historical perspectives added in the chapters?

<p>Pioneers in the development of analytical tools. (A)</p> Signup and view all the answers

What has been extensively revised and updated in the seventh edition of Analytical Chemistry?

<p>New materials, problems, and references (A)</p> Signup and view all the answers

Which Excel tools are introduced for solving complex problems?

<p>Excel Goal Seek and Excel Solver (B)</p> Signup and view all the answers

Where has the introductory material regarding spreadsheets been relocated in the seventh edition?

<p>At the end of Chapter 3 as a separate unit (C)</p> Signup and view all the answers

What is one major advantage mentioned about using spreadsheets in analytical chemistry?

<p>They help in plotting and data processing effectively. (B)</p> Signup and view all the answers

Which of the following contributions is NOT listed in the seventh edition acknowledgments?

<p>Mark Johnson (C)</p> Signup and view all the answers

What type of curves are students able to construct using the introduced Excel programs?

<p>Titration curves and derivative titrations (C)</p> Signup and view all the answers

What was the purpose behind placing certain useful programs on the text website?

<p>To provide easier access for plotting various curves (C)</p> Signup and view all the answers

How many years have passed since the last edition was published?

<p>Ten years (D)</p> Signup and view all the answers

What is the primary purpose of Goal Seek in problem-solving?

<p>To solve for one parameter in an equation (D)</p> Signup and view all the answers

Which of the following problems can utilize Goal Seek as mentioned?

<p>Solving for pH in multiple solutions (A)</p> Signup and view all the answers

In the context of the given content, what does the Van Deemter plot typically represent?

<p>Relationship between plate height and linear velocity in chromatography (D)</p> Signup and view all the answers

What kind of calculations might you perform using the EXCEL SOLVER mentioned?

<p>Optimization of buffer compositions (D)</p> Signup and view all the answers

Which example describes a solubility problem using Goal Seek?

<p>Solubility of CaC2 O4 in 0.001M HCl (D)</p> Signup and view all the answers

What type of spreadsheet was suggested for the calculations involving pH adjustments?

<p>Goal Seek calculation and adjustment template (C)</p> Signup and view all the answers

Where did Gary move in 1972?

<p>University of Washington (B)</p> Signup and view all the answers

What does the term 'Ionic Strength Plot' primarily refer to in the context of scientific problem-solving?

<p>A graphical representation of the relationship of ionic concentration to solution behavior (A)</p> Signup and view all the answers

Which example discusses the use of Goal Seek for charge balance?

<p>Example 11.2 focusing on the solubility of MA (D)</p> Signup and view all the answers

What recognition did Gary receive for his teaching activities?

<p>Fisher Award in Analytical Chemistry (B)</p> Signup and view all the answers

Which university did Purnendu K. Dasgupta attend for his PhD?

<p>Louisiana State University (C)</p> Signup and view all the answers

In which year did Gary write the first edition of the text?

<p>1971 (B)</p> Signup and view all the answers

What position did Sandy hold when he joined the University of Texas at Arlington?

<p>Department Chair (C)</p> Signup and view all the answers

What kind of award is the ACS Division of Analytical Chemistry Award?

<p>Teaching award (C)</p> Signup and view all the answers

What was Sandy's notable achievement before focusing on analytical chemistry?

<p>Publishing poetry (D)</p> Signup and view all the answers

Which position has Gary held since 1989?

<p>Editor-in-Chief of Talanta (C)</p> Signup and view all the answers

What question type does analytical chemistry primarily seek to answer regarding materials?

<p>Where was the material sourced from? (A), What arrangement, structure or form does the material have? (B)</p> Signup and view all the answers

In which of the following fields is analytical chemistry NOT commonly applied?

<p>Construction management (D)</p> Signup and view all the answers

Which statement best describes the quantitative aspect of analytical chemistry?

<p>It determines the exact amounts of identified substances. (D)</p> Signup and view all the answers

How does analytical chemistry contribute to the food industry?

<p>Through determining nutritional values and safety. (D)</p> Signup and view all the answers

Which of the following best summarizes the goal of analytical chemistry?

<p>To measure and improve the chemical composition of substances. (C)</p> Signup and view all the answers

Which technique is NOT typically part of analytical chemistry?

<p>Hypothesis generation (A)</p> Signup and view all the answers

What potential contribution does analytical chemistry make to space science?

<p>Chemical analysis of surface materials and contaminants. (C)</p> Signup and view all the answers

What type of analysis assesses the presence of harmful substances in the environment?

<p>Qualitative analysis. (B)</p> Signup and view all the answers

Flashcards

Contributing Colleagues

Professors and researchers who contributed to the development of this book, providing problems, analytical examples, updates, and experimental data.

Gary Hieftje

Professor at Indiana University, specializing in analytical chemistry.

Andre Campiglia

Professor at the University of Central Florida, specializing in analytical chemistry.

David Chen

Professor at the University of British Columbia, specializing in analytical chemistry.

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Christa L. Colyer

Professor at Wake Forest University, specializing in analytical chemistry.

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Liquid Chromatography

A method of separating and analyzing components of a mixture based on their different affinities for a stationary phase and a mobile phase.

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High Performance Liquid Chromatography (HPLC)

A liquid chromatography technique that uses a stationary phase with a specific functional group that interacts with analytes based on their chemical properties.

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Liquid-Solid Chromatography

A type of liquid chromatography where the stationary phase is a solid material and the mobile phase is a liquid. The separation is based on differences in adsorption and desorption of analytes on the stationary phase.

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Liquid-Liquid Chromatography

A type of liquid chromatography where the stationary phase is a liquid layer immobilized on a solid support material and the mobile phase is a liquid. The separation is based on differences in partition coefficients of analytes between the two phases.

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Size Exclusion Chromatography (SEC)

A type of liquid chromatography where the stationary phase is a polymer with a specific functional group and the mobile phase is a liquid. The separation is based on differences in size and shape of analytes.

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Chiral Chromatography

A type of liquid chromatography where the stationary phase is a chiral material and the mobile phase is a liquid. The separation is based on differences in enantiomeric purity of analytes.

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Ion Exchange Chromatography (IEC)

A type of liquid chromatography where the stationary phase is a material that interacts with analytes based on their charge. The mobile phase is a liquid with a specific ionic strength.

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Reverse Phase Chromatography (RPC)

A type of liquid chromatography where the stationary phase is a material that interacts with analytes based on their hydrophobicity. The mobile phase is a liquid with varying polarity.

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Goal Seek

A technique for solving a problem by adjusting the input value of a formula until the desired result is achieved. This approach is used in spreadsheets to find equilibrium values in chemical systems.

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Excel Solver

A tool available in spreadsheets like Excel that helps find the optimal solution for a problem by adjusting multiple variables simultaneously. This technique is used in analytical chemistry to solve complex problems and construct titration curves.

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Weak Acid-Base Mixture pH

Calculating the pH of a solution containing both a weak acid and its conjugate base. This is usually achieved by using the Henderson-Hasselbalch equation, which relates the pH to the pKa and the ratio of the concentrations of the acid and its conjugate base.

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Alpha Plot (for polyprotic acids)

A visual representation of the relative amounts of each species (e.g., acid, base, conjugate) present in a solution as a function of pH. The alpha values represent the fraction of each species present at a given pH.

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Excel Titration Curve Generation

A spreadsheet-based method for generating a titration curve for a chemical reaction. Users input equilibrium constants, concentrations, and volumes, and the program creates a plot depicting the pH change as a function of titrant volume.

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Titration Curve

A graphical representation of the pH of a solution as a function of the volume of titrant added during a titration. These curves are valuable for determining equivalence points and for understanding the behavior of acids and bases.

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Equivalence Point

The point in a titration where stoichiometrically equivalent amounts of acid and base have been mixed. At this point, the pH of the solution depends only on the strength of the conjugate acid or base.

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Spreadsheets in Analytical Chemistry

The use of spreadsheets, specifically Excel, as a powerful tool in analytical chemistry for calculations, plotting, and data processing. It provides functions for solving complex problems, creating titration curves, and analyzing experimental data.

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Van Deemter Plot

A graph showing the relationship between theoretical plate height (HETP) and mobile phase velocity, used in chromatography to optimize separation efficiency.

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Ionic Strength Plot

A graph showing how the ionic strength of a solution affects the solubility of a salt.

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Solubility from Ksp

A method for calculating the solubility of a salt using its solubility product (Ksp).

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Ionic Strength

A measure of the overall concentration of ions in a solution.

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Regression Function in Excel

A technique used to analyze and interpret data, especially for finding relationships between variables. Excel's regression function can be used to perform linear and non-linear regressions.

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pH Calculation for Multiple Solutions

A powerful tool for solving complex equilibrium problems by finding the pH of a solution containing multiple acids and bases.

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Who was the original author?

Gary Hieftje wrote the initial edition of this text in 1971.

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Who contributed to the latest edition?

Professors Dasgupta and Schug joined Gary Hieftje in the most recent edition of this book.

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What are some of Gary Hieftje's achievements?

Gary Hieftje has received numerous awards for his contributions to teaching and research in analytical chemistry.

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Who is Purnendu K. (Sandy) Dasgupta?

Purnendu K. (Sandy) Dasgupta is a native of India who received his PhD in Analytical Chemistry from LSU in 1977.

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What research was Sandy involved with prior to joining the book's project?

Purnendu K. (Sandy) Dasgupta started his career as an Aerosol research chemist at the California Primate Research Center.

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What was Purnendu K. (Sandy) Dasgupta's creative interest before analytical chemistry?

Purnendu K. (Sandy) Dasgupta was a published poet and novelist before finding his passion in analytical chemistry.

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What recognition did Sandy receive for his work at Texas Tech?

Sandra received the 'Horn Professor' designation in 1992 for his contributions to education and research.

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What was Sandy's next career move after Texas Tech?

Sandy joined the University of Texas Arlington in 2007 and currently holds the Jenkins Garrett Professorship.

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Analytical chemistry

Analytical chemistry focuses on determining the composition of materials, including identifying components and their quantities.

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Qualitative analysis

Qualitative analysis identifies the substances present in a sample.

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Quantitative analysis

Quantitative analysis determines the amount of each substance present in a sample.

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Four basic questions in analytical chemistry

The four basic questions about a material sample are 'What?', 'Where?', 'How much?', and 'What arrangement?', covering qualitative, spatial, quantitative, and speciation aspects of analytical science.

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Analytical chemistry in medicine

Analytical chemists play a crucial role in medicine by providing data for diagnosis and treatment.

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Analytical chemistry in industry

Analytical techniques ensure the quality of raw materials and finished products in various industries.

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Analytical chemistry in environment

Analytical chemistry helps evaluate environmental quality by detecting contaminants.

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Analytical chemistry in food science

Analytical methods determine the nutritional value of food by analyzing major components (e.g., protein) and trace components (e.g., vitamins).

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Study Notes

Contributors and Colleagues

  • Numerous colleagues contributed problems, examples, updates, and experiments.
  • Contributors include individuals from various universities and institutions across the USA, and Korea.

Text Revisions and Updates

  • All chapters have been revised, some extensively, focusing on recent instrumentation innovations.
  • Chapters 16 (spectrochemical), 17 (atomic spectrometric), and 20 (gas chromatography) have been significantly updated.
  • The material from these and other chapters is suitable for Instrumental Analysis and Quantitative Analysis courses.
  • Historical context is included, highlighting pioneers in analytical chemistry.

Excel Programs and Videos

  • Powerful Excel programs are included for complex calculations and plotting (titration curves, alpha vs. pH, logC vs. pH).
  • Student-created video tutorials demonstrate Excel program usage.
  • QR codes are included in each chapter for accessing video tutorials on the text website.
  • Video tutorials are categorized by chapter and page number.

Excel Functions and Videos in Specific Chapters

  • Chapter 3: Topics include error bars, Solver, data analysis regression, F-test, t-test, plotting in Excel, absolute cell references, average, STDEV, intercept/slope/r-square, LINEST.
  • Chapter 6: Topics include Goal Seek equilibrium and problem 6.2.
  • Chapter 7: Topics include Goal Seek pH NH4 F, Goal Seek Mixture.
  • Chapter 8: Topics include Excel H3 PO4 titration curve.
  • Chapter 9: Topics include H4 Y alpha plot Excel 1, H4 Y alpha plot Excel 2, Example 9.6.

Spreadsheet Usage and Excel Functionality

  • Detailed instructions for using spreadsheets in analytical calculations, plotting, and data processing are included.
  • The introductory material on spreadsheets is placed at the end of Chapter 3 for added flexibility.
  • Excel Goal Seek and Solver are introduced to solve complex problems, including titration curves.
  • Useful programs for plotting titration curves, derivative titrations, etc., are provided online with instructions.

Specific Examples and Associated Spreadsheet Use

  • Various examples involving specific calculations (equilibrium reactions, titration curves, solubility) are detailed with the use of Goal Seek. These examples include pH calculations given different concentrations.
  • Problem 42 and 43 focus on Ionic Strength Plots and Van Deemter Plot references.
  • Spreadsheet examples for solubility calculations are included. Excel functions are discussed for complex problem solving.

About the Authors

  • Gary Hieftje is the original author of the text and Emeritus Professor from the University of Washington.
  • Purnendu Dasgupta is the contributor and added expertise in this edition. Notably, he worked/contributed at Texas Tech University and Arlington University.
  • This edition is the seventh version.

Definition of Analytical Chemistry

  • Analytical chemistry aims to improve methods for measuring the chemical composition of materials, whether natural or artificial.
  • It involves identifying substances and determining their precise amounts.
  • Applications range from medicine (clinical tests) to industry (quality control) and environmental testing to food analysis.
  • Analytical chemistry has implications in various fields, including forensics, archaeology, and space science.

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This quiz tests your knowledge on key contributors and significant chapters in liquid chromatography. It covers affiliations with various universities and highlights important revisions. Prepare to explore educational resources included in the text as well.

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