PRINCIPLES OF INSTRUMENTAL ANALYSIS
PRINCIPLES OF INSTRUMENTAL ANALYSIS
7th Edition
ISBN: 9789353506193
Author: Skoog
Publisher: CENGAGE L
bartleby

Concept explainers

Question
Book Icon
Chapter 20, Problem 20.11QAP
Interpretation Introduction

(a)

Interpretation:

The resolution required to resolve the following peak should be stated:

CH2N(M = 28.0187) and N2+ is (M = 28.0061).

Concept introduction:

The difference between the masses of the peaks of the mass spectrometer is called resolution.

Interpretation Introduction

(b)

Interpretation:

The resolution required to resolve the following peak should be stated:

C2H4+(M = 28.0313) and CO+ is (M = 27.9949).

Concept introduction:

The difference between the masses of the peaks of the mass spectrometer is called resolution.

Interpretation Introduction

(c)

Interpretation:

The resolution required to resolve the following peak should be stated:

C3H7N3+(M = 85.0641) and C5H9O+ is (M = 85.0653).

Concept introduction:

The difference between the masses of the peaks of the mass spectrometer is called resolution.

Interpretation Introduction

(d)

Interpretation:

The resolution required to resolve the following peak should be stated:

androst-4-en-3,17,-dione(M+)m/z is 286.1930 and impurity is 286.1240.

Concept introduction:

The difference between the masses of the peaks of the mass spectrometer is called resolution.

Blurred answer
Students have asked these similar questions
(a 4 shows scanning electron microscope (SEM) images of extruded actions of packing bed for two capillary columns of different diameters, al 750 (bottom image) and b) 30-μm-i.d. Both columns are packed with the same stationary phase, spherical particles with 1-um diameter. A) When the columns were prepared, the figure shows that the column with the larger diameter has more packing irregularities. Explain this observation. B) Predict what affect this should have on band broadening and discuss your prediction using the van Deemter terms. C) Does this figure support your explanations in application question 33? Explain why or why not and make any changes in your answers in light of this figure. Figure 4 SEM images of sections of packed columns for a) 750 and b) 30-um-i.d. capillary columns.³
fcrip = ↓ bandwidth Il temp 32. What impact (increase, decrease, or no change) does each of the following conditions have on the individual components of the van Deemter equation and consequently, band broadening? Increase temperature Longer column Using a gas mobile phase instead of liquid Smaller particle stationary phase Multiple Paths Diffusion Mass Transfer
34. Figure 3 shows Van Deemter plots for a solute molecule using different column inner diameters (i.d.). A) Predict whether decreasing the column inner diameters increase or decrease bandwidth. B) Predict which van Deemter equation coefficient (A, B, or C) has the greatest effect on increasing or decreasing bandwidth as a function of i.d. and justify your answer. Figure 3 Van Deemter plots for hydroquinone using different column inner diameters (i.d. in μm). The data was obtained from liquid chromatography experiments using fused-silica capillary columns packed with 1.0-μm particles. 35 20 H(um) 큰 20 15 90 0+ 1500 100 75 550 01 02 594 05 μ(cm/sec) 30 15 10
Knowledge Booster
Background pattern image
Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning