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Instrumental Analysis CHE 403 Jinseok Heo Alexander Nazarenko.

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Presentation on theme: "Instrumental Analysis CHE 403 Jinseok Heo Alexander Nazarenko."— Presentation transcript:

1 Instrumental Analysis CHE 403 Jinseok Heo Alexander Nazarenko

2 Synthetic ChemistryAnalytical Chemistry To make a new stuff To find out what is it “white powder”

3 4.2 Instrumentation. The characterization and analysis of chemical systems requires an appropriate suite of modern chemical instrumentation and specialized laboratory apparatus. Instrumentation should be modern, high quality, and properly maintained. Approved programs must have a functioning NMR spectrometer that undergraduates use in instruction and research. Throughout their curriculum, undergraduates must use instrumentation from most of the broad categories listed below: Optical spectroscopy (e.g., UV-vis, FTIR, fluorescence, atomic absorption and emission, Raman, laser) Chromatography and separations (e.g., HPLC, GC, electrophoresis) Mass spectrometry (e.g., MS, GC-MS) Electrochemistry (e.g., potentiometry, voltammetry) Imaging and microscopy methods (e.g., electron microscopy, scanning probe microscopy) From “Professional Education in Chemistry. Guidelines.”

4 Analytical chemistry sequence @ BSC CHE111-112 Titrations with NaOH, EDTA, KMnO 4, K 2 Cr 2 O 7,, I 2 Some separations and photometry CHE203-204 Identification of organic compounds; IR, NMR, GC CHE301 Analytical Chemistry itself: gravimetry, titrations, electrochemistry and spectrophotometry CHE403 Instruments, how they work and how to operate them Biochemistry, Forensic Lab, Analytical Toxilcology, and Inorganic Chemistry - More about analytical methods

5 Quantitative Chemical Analysis 6 th Edition and 7 th Edition Daniel C. Harris (Michelson Laboratory, China Lake)

6 A Chemical Analysis 1.Define the problem 2. Choose the method 3. Obtain the sample

7 1.Define the problem 2.Choose the method 3. Obtain the sample Sample preparation (preconcentration, separation, removal of interferences) Run assay (determination Data Processing Data Analysis and Interpretation Garbage in, Garbage out!

8 Basic measures: Metric System Mole Atomic mass (Atomic weight) Formula mass (Formula weight) Molecular mass ( Molecular weight)

9 Concentration: Weight-to-weight (w/w) Weight-to-volume (w/v) Volume to volume (v/v) Number-to-volume (molarity)


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