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Contents

　- Environmental Analysis Chemistry (Introduction)

　- Using Analytical Tools
　　　- Using the pipette (Be sure to follow)
　　　- How to use the pipette (How to use it correctly)
　　　- Prepare the standard sample using a precision electronic balance.

YouTube videos are available.

　- Analytical methods and principles

　　　- Dissolved Oxygen Measurement (Water Sampling Procedure and Titration Procedure)
　　　- Measurement of Dissolved Oxygen (Winkler method)
　　　- Chromatography (ion exchange resin)
　　　- Gas chromatography
    　　- Ion chromatography
           - Method for increasing sensitivity (concentration of gas components)
           - Co-precipitation with iron co-precipitation

　- Error and accuracy control
　　　- Significant figures (Introduction)
　　　- Calculation of adjustment and multiplication/division including significant figures (simple rule)
　　　- Significant figures (application problems of simplified rules)
　　　- Significant figures (Propagation of Errors-Formal Version-Basic Edition)
　　　- Significant figures (propagation of errors-formal version-application problem)

　- Intensity method (quantification by standard sample preparation) and detection limit
　　　- Calibration Curve Method (Determining Concentration by Calibration Curve-Introduction)
　　　- Calculation of Concentration of Standard Samples (Calibration Curve Method)
　　　- Example of Calibration Curve (1-1) Basic Problem
　　　- Example of Calibration Curve (1-2) Handling of High Concentrations
　　　- Example of Calibration Curve (1-3) Handling of Low Concentrations
　　　- Lower limit of detection (limit) and lower limit of quantitation (overview)
　　　- How to detect limit (lower limit) and determination lower limit
　　　- Blank (blank sample) measurement
　　　- Quantitative evaluation of object measurement on a self-scale (mini-report)

YouTube videos (calibration method) are available.

　- Foundation of physicochemistry (breakdown of energy possessed by substances)
　　　- Breakdown of Material Energy (Introduction)
　　　- Breakdown of energy (enthalpy) possessed by substances (overview)
　　　- Breakdown of the energy of a substance (entropy)
　　　- Breakdown of the energy of a substance (law of entropy enhancement)
　　　- Breakdown of energy possessed by matter (entropy and thermodynamic function)
　　　- Breakdown of material's energy (entropy and internal energy)
　　　- Breakdown of substance energy (changes before and after chemical reactions)

　- Foundation of physicochemistry (conditional expression of chemical equilibrium)

　　　- Derive a conditional expression for chemical equilibrium
　　　- The basic formula for chemical equilibrium (Remember this so that you can use it.)
　　　- Basic formula for chemical equilibrium (dissolution equilibrium concentration of sodium chloride)
　　　- Basic formula for chemical equilibrium (water dissociation equilibrium)

　　　- Basic formula for chemical equilibrium (precipitation conditions for manganese hydroxide)
　　　- When a reaction proceeds from chemical equilibrium
           - When a reaction proceeds from the chemical equilibrium (hydrogen-oxygen reaction)
　　　- When the reaction proceeds from the chemical equilibrium (where manganese hydroxide dissolves)-

　- Basics of physicochemistry (redox reaction and electrochemistry)
　　　- Energy difference before and after the respiration reaction (redox reaction)
　　　- Redox reaction (preparation of semi-reaction formula-respiratory reaction)
　　　- Redox reactions (summarization of respiratory reactions, generalization of semi-reaction equations)
　　　- Redox reaction (standard electrode potential)
　　　- Redox reaction (order of breathing forms)
　　　- Electrochemistry (Nernst's equation)
　　　- Electrochemistry (Daniel cell)