IR and GC Learning Center

INTOCHEMISTRY / LAB INTERPRETATION

IR & GC Learning Center

Move from spectrum quality to functional-group evidence, chromatographic reasoning, and integrated lab conclusions.

Interpreting IR Functional-Group Evidence

Read a spectrum from high to low wavenumber, identify useful combinations of absorptions, and state conclusions with appropriate uncertainty.

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Evaluating IR Spectrum Quality

Recognize when atmosphere, saturation, baseline distortion or poor sample preparation undermine your interpretation.

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Reading GC Retention Times and Peak Areas

Interpret retention times, integrated detector responses, relative areas, and the evidence needed for compound identification.

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Combining GC, IR, and Recovered-Mass Evidence

Compare observations from complementary techniques without hiding disagreements or overstating what one measurement proves.

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