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Author Archives: Anonymous

FTIR spectra are unique to each compound and can serve as mo…

FTIR spectra are unique to each compound and can serve as molecular fingerprints.

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The FTIR baseline drift in a humid lab is most likely due to…

The FTIR baseline drift in a humid lab is most likely due to:

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The internal standard (Tridecane) helps correct for injectio…

The internal standard (Tridecane) helps correct for injection volume variations and instrument response fluctuations.

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When switching from a volatile to viscous oil, one must:

When switching from a volatile to viscous oil, one must:

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The presence of aromatic overtones near 2000–1600 cm⁻¹ confi…

The presence of aromatic overtones near 2000–1600 cm⁻¹ confirms:

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List the two types of results that can be provided through F…

List the two types of results that can be provided through FTIR? [1] [2]

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If your method blank is 0.30 ppm Ca, the most defensible cor…

If your method blank is 0.30 ppm Ca, the most defensible correction is to:

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Your residuals are: low (+), mid (+), high (+) all positive….

Your residuals are: low (+), mid (+), high (+) all positive. Best interpretation?

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Unknown concentrations (µg/mL) from three injections are 647…

Unknown concentrations (µg/mL) from three injections are 647.4, 641.5, 652.9. Compute mean, SD, and %RSD. Mean = [A] (Report to 1 decimal place) SD = [s] (Report to 1 decimal place) %RSD = [RSD] (Report to 2 decimal place)

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The calibration curve is created by plotting the ___________…

The calibration curve is created by plotting the ___________ against the known concentrations of Dodecane.

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