(a) Interpretation: The reason for decrease in atomic absorption signal for iron in presence of large concentration of sulphate ion in hydrogen-oxygen flame needs to be explained. Concept introduction: In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Question

1. Calculate the accurate monoisotopic mass (using all 1H, 12C, 14N, 160 and 35CI) for your product using the table in your lab manual. Don't include the Cl, since you should only have [M+H]*. Compare this to the value you see on the LC-MS printout. How much different are they? 2. There are four isotopic peaks for the [M+H]* ion at m/z 240, 241, 242 and 243. For one point of extra credit, explain what each of these is and why they are present. 3. There is a fragment ion at m/z 184. For one point of extra credit, identify this fragment and confirm by calculating the accurate monoisotopic mass. 4. The UV spectrum is also at the bottom of your printout. For one point of extra credit, look up the UV spectrum of bupropion on Google Images and compare to your spectrum. Do they match? Cite your source. 5. For most of you, there will be a second chromatographic peak whose m/z is 74 (to a round number). For one point of extra credit, see if you can identify this molecule as well and confirm by…

Answer 1

Question

Chapter 9, Problem 9.13QAP

Interpretation Introduction

(a)

Interpretation:

The reason for decrease in atomic absorption signal for iron in presence of large concentration of sulphate ion in hydrogen-oxygen flame needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Interpretation Introduction

(b)

Interpretation:

The ways of overcoming interference of sulphate in iron determination needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

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1. Calculate the accurate monoisotopic mass (using all 1H, 12C, 14N, 160 and 35CI) for your product using the table in your lab manual. Don't include the Cl, since you should only have [M+H]*. Compare this to the value you see on the LC-MS printout. How much different are they? 2. There are four isotopic peaks for the [M+H]* ion at m/z 240, 241, 242 and 243. For one point of extra credit, explain what each of these is and why they are present. 3. There is a fragment ion at m/z 184. For one point of extra credit, identify this fragment and confirm by calculating the accurate monoisotopic mass. 4. The UV spectrum is also at the bottom of your printout. For one point of extra credit, look up the UV spectrum of bupropion on Google Images and compare to your spectrum. Do they match? Cite your source. 5. For most of you, there will be a second chromatographic peak whose m/z is 74 (to a round number). For one point of extra credit, see if you can identify this molecule as well and confirm by…

Please draw, not just describe!

can you draw each step on a piece of a paper please this is very confusing to me

Answer 2

Question

Chapter 9, Problem 9.13QAP

Interpretation Introduction

(a)

Interpretation:

The reason for decrease in atomic absorption signal for iron in presence of large concentration of sulphate ion in hydrogen-oxygen flame needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Interpretation Introduction

(b)

Interpretation:

The ways of overcoming interference of sulphate in iron determination needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

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Answer 3

Question

Chapter 9, Problem 9.13QAP

Interpretation Introduction

(a)

Interpretation:

The reason for decrease in atomic absorption signal for iron in presence of large concentration of sulphate ion in hydrogen-oxygen flame needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Interpretation Introduction

(b)

Interpretation:

The ways of overcoming interference of sulphate in iron determination needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

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Answer 4

Question

Chapter 9, Problem 9.13QAP

Interpretation Introduction

(a)

Interpretation:

The reason for decrease in atomic absorption signal for iron in presence of large concentration of sulphate ion in hydrogen-oxygen flame needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Interpretation Introduction

(b)

Interpretation:

The ways of overcoming interference of sulphate in iron determination needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

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Answer 5

Chapter 9, Problem 9.13QAP

Interpretation Introduction

(a)

Interpretation:

The reason for decrease in atomic absorption signal for iron in presence of large concentration of sulphate ion in hydrogen-oxygen flame needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Interpretation Introduction

(b)

Interpretation:

The ways of overcoming interference of sulphate in iron determination needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Answer 6

Chapter 9, Problem 9.13QAP

Interpretation Introduction

(a)

Interpretation:

The reason for decrease in atomic absorption signal for iron in presence of large concentration of sulphate ion in hydrogen-oxygen flame needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Answer 7

Chapter 9, Problem 9.13QAP

Interpretation Introduction

(a)

Interpretation:

The reason for decrease in atomic absorption signal for iron in presence of large concentration of sulphate ion in hydrogen-oxygen flame needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The ways of overcoming interference of sulphate in iron determination needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The ways of overcoming interference of sulphate in iron determination needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Answer 10

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Answer 21

Ch. 9 - Prob. 9.1QAP Ch. 9 - Prob. 9.2QAP Ch. 9 - Why is an electrothermal atomizer more sensitive...Ch. 9 - Prob. 9.4QAP Ch. 9 - Prob. 9.5QAP Ch. 9 - Prob. 9.6QAP Ch. 9 - Prob. 9.7QAP Ch. 9 - Prob. 9.8QAP Ch. 9 - Prob. 9.9QAP Ch. 9 - Prob. 9.10QAP

(b) Interpretation: The ways of overcoming interference of sulphate in iron determination needs to be explained. Concept introduction: In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.

Chapter 9 Solutions

(b)

Interpretation:

The ways of overcoming interference of sulphate in iron determination needs to be explained.

Concept introduction:

In a defined space, the amount of a substance gives its concentration. A substance’s capacity to absorb specific wavelength light gives its absorbance.