A client brings you a mixture of organic compounds that she...

A client brings you a mixture of organic compounds that she wants analyzed. Preliminary analysis suggests that the elements present are C, H, O and N, Cl and Br. Upon heating, the mixture does evaporate very slowly to dryness. The client only wants to know how many components are in the sample. Pick all the appropriate methods to analyze this sample. Group of answer choices 1) Gas chromatography with a mass spectrometer detector. 2) Gas chromatography with a ECD detector. 3) HPLC with a mass spectrometer detector 4) HPLC with a UV detector 5) Atomic absorbance

Transcript

0:00 Hello.

00:01 So in this question, we are given a sample and we can see here that is that sample it is evaporating but at very, very slow rate.

00:13 Or we can say the evaporation is nearly negligible.

00:19 So we can't use the gas chromatography.

00:24 Therefore we can say the gas chromatography options, these are, those are incorrect.

00:29 So this gas chromatography, it is a very common type of chromatography used in the analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition.

00:45 Without decomposition.

00:52 So, this chromatography, it includes a testing the purity of a particular substance or separating the different components of a mixture.

01:01 So to separate the chemical components of a sample mixture and then detect them to determine their presence or absence and or how much it is present there.

01:11 So this is the gas, carrier gas where this suppose helium, hydrogen, nitrogen, oxygen, these are the gases are carried in this case.

01:22 And this is the computer or we can say the mass spectrometer where we can get the details.

01:30 Now, so we cannot use the gas chromatography.

01:39 Now if we will use the hplc, hplc, it stands for the high performance liquid chromatography.

01:58 So this hplc, it formally referred to as the high pressure liquid chromatography.

02:06 It is a technique in analytical...

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