How to read IR graph - IR spectrum explanation | Spectroscopy for Biologists - 9

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00:00 Introduction
00:12 Principle of IR spectrum
00:52 Step 1: Understand the IR spectrum graph
01:29 Step 2: Identify the Key Regions
01:58 Step 3: Identify Peaks on the graph
02:28 Step 4: Find the Important Peaks
03:15 Step 5: Analyze the intensities of the absorption bands
03:35 Step 6: Consider peak shape
04:28 step 7: Confirm Functional Groups
04:44 Step 8: interpretation
05:11 Case Study

[@user-uk1zp8ce9r]

Very informative

[@Azzah_ghanem]

This is very enlightening, thank u!

[@genticswithkazan]

Glad it was helpful!

[@Dee13_skips]

Well put video

[@yetundeanuoluwapo8161]

Can you make a video on how to read NMR specturm graph.....thanks 😊

[@genticswithkazan]

Soon

[@snn4195]

1:15 The y-axis doesn't show absorption. On the contrary, it shows transmittance. So it is not the highest absorbance at 2000 wave number as you show there.

[@jaimataki2615]

I just don't understand why some are steep and tapering down?!

[@DaniaKazan-ib9ee]

❤️❤️❤️

[@EmanObaji-gp9lk]

👍👍👍

[@storieskiki]

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[@missyou467]

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[@dreamer0050]

Sir at 3:38 the peak is for Acids that contains OH group not for alcohols?

[@genticswithkazan]

In the infrared (IR) spectrum, the O-H (oxygen-hydrogen) stretching vibrations for alcohols generally appear as a sharp peak around 3100 cm^-1. For acids, particularly carboxylic acids like acetic acid (CH3COOH), the O-H stretching vibration produces a broad peak around 3000-3300 cm^-1. So, for differentiation: - Alcohols: Look for a sharp peak around 3100 cm^-1. - Acids (e.g., carboxylic acids): Look for a broad peak around 3000-3300 cm^-1.

[@DaniaKazan-ib9ee]

👍👍

[@rehamkazan1461]

👍👍👍

[@bddfccvhhggvvg7726]

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[@bddfccvhhggvvg7726]

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