Quantitative analysis
Undergraduate · Chemistry
Syllabus focus
Standard syllabus · STEM / applied
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Topics typically covered
Standard syllabus
Analytical principles
- The analytical process: sampling through reporting
- Significant figures and rounding rules
- Systematic and random errors
- Accuracy, precision, and bias
- Standard deviation and confidence limits
- Student's t-test for comparing means
- Grubbs test for outliers
- Calibration and standard addition methods
- Internal standards and normalization
- Method validation parameters
Gravimetric analysis
- Properties of good precipitates
- Precipitation from homogeneous solution
- Digestion, aging, and particle growth
- Coprecipitation and post-precipitation errors
- Washing and drying precipitates
- Ignition and weighing to constant mass
- Gravimetric factor calculations
- Applications: chloride as AgCl, sulfate as BaSO₄
- Electrogravimetry (introduction)
- Thermogravimetric analysis connection
Volumetric analysis
- Standard solutions and primary standards
- Equivalence point vs endpoint
- Acid-base titrations: indicators and pH curves
- Titration of weak acids and polyprotic systems
- Complexometric titrations with EDTA
- Masking and demasking agents
- Redox titrations: pre-reduction and standardization
- Iodometric and iodimetric methods
- Precipitation titrations: Mohr, Volhard, Fajans
- Back-titration and indirect methods
Electroanalytical methods
- Electrochemical cell notation and conventions
- Reference electrodes: SCE, Ag/AgCl, calomel
- Potentiometry and direct potentiometric measurement
- Ion-selective electrodes: fluoride, calcium, ammonia
- Dead-stop endpoint in titrations
- Voltammetry: polarographic waves
- Stripping voltammetry for trace analysis
- Amperometric titrations
- Conductometric titrations
- Selecting electroanalytical methods for analytes
STEM / applied
Laboratory techniques
- Analytical balance use and buoyancy corrections
- Volumetric glassware calibration
- Buret technique and parallax errors
- Desiccators and hygroscopic sample handling
- Filtration: gravity and vacuum techniques
- Drying and ashing procedures
- Preparation of standard solutions
- Titration curve recording with pH meters
- Data spreadsheets and linear regression
- Laboratory safety for corrosive and oxidizing reagents
Applied quantitative analysis
- Water hardness determination by EDTA
- Chlorine residual analysis in drinking water
- Pharmaceutical assay by acid-base titration
- Agricultural soil analysis: pH, nutrients
- Industrial process control titrations
- Environmental COD and BOD measurements (connection)
- Food analysis: acidity, salt, vitamin C
- Clinical electrolyte measurement principles
- ASTM and USP compendial methods (overview)
- Quality control in manufacturing laboratories
Notes
Often taught as part of or before analytical chemistry sequences. Topics reflect common quantitative analysis syllabi at US colleges and universities. Emphasis on accurate technique and error analysis.