Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 27, Problem 27.3QAP
Interpretation Introduction
Interpretation:
The phenomenon of temperature programming in GC and the reason for it’s frequent use is to be stated.
Concept introduction:
In the temperature programming method, the temperature of the column is continuously raised at a predefined rate which varies as function of time. This technique is commonly used for the analysis of mixtures with a wide range of boiling points.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Volatile and semi-volatile compounds can be analyzed by GC
Briefly discuss the four ICH-recognized climactic zones.
ZM SNAP CCL
Date Adj Close Adj Close Adj Close
5/1/2019 79.730003 11.89 49.005779
6/1/2019 88.790001 14.3 44.991188
7/1/2019 95.510002 16.799999 45.648418
8/1/2019 91.669998 15.83 42.603905
9/1/2019 76.199997 15.8 42.711044
10/1/2019 69.889999 15.06 41.909786
11/1/2019 74.5 15.25 44.04974
12/1/2019 68.040001 16.33 50.243595
1/1/2020 76.300003 18.379999 43.027809
2/1/2020 105 14.17 33.073982
3/1/2020 146.119995 11.89 13.17
4/1/2020 135.169998 17.610001 15.9
5/1/2020 179.479996 18.940001 15.74
6/1/2020 253.539993 23.49 16.42
7/1/2020 253.910004 22.42 13.88
8/1/2020 325.100006 22.59 16.48
9/1/2020 470.109985 26.110001 15.18
10/1/2020 460.910004 39.389999 13.71
11/1/2020 478.359985 44.419998 19.98
12/1/2020 337.320007 50.07 21.66
1/1/2021 372.070007 52.939999 18.67
2/1/2021 373.609985 65.660004 26.75
3/1/2021 321.290009 52.290001 26.540001
4/1/2021 319.570007 61.82 27.959999
5/1/2021 331.529999 62.119999 29.559999
6/1/2021 387.029999 68.139999 26.360001
7/1/2021…
Chapter 27 Solutions
Principles of Instrumental Analysis
Ch. 27 - Prob. 27.1QAPCh. 27 - Prob. 27.2QAPCh. 27 - Prob. 27.3QAPCh. 27 - Prob. 27.4QAPCh. 27 - Prob. 27.5QAPCh. 27 - Prob. 27.6QAPCh. 27 - Prob. 27.7QAPCh. 27 - Prob. 27.8QAPCh. 27 - Prob. 27.9QAPCh. 27 - What are hyphenated GC methods? Briefly describe...
Ch. 27 - Prob. 27.11QAPCh. 27 - Prob. 27.12QAPCh. 27 - Prob. 27.13QAPCh. 27 - Prob. 27.14QAPCh. 27 - Prob. 27.15QAPCh. 27 - Prob. 27.16QAPCh. 27 - Prob. 27.17QAPCh. 27 - Prob. 27.18QAPCh. 27 - Prob. 27.19QAPCh. 27 - The same polar compound is gas chromatographed on...Ch. 27 - Prob. 27.21QAPCh. 27 - Prob. 27.22QAPCh. 27 - Prob. 27.23QAPCh. 27 - Prob. 27.24QAPCh. 27 - Prob. 27.25QAPCh. 27 - Prob. 27.26QAPCh. 27 - Prob. 27.27QAPCh. 27 - Prob. 27.28QAPCh. 27 - Why is GSC not used nearly as extensively as GLC?Ch. 27 - Prob. 27.30QAP
Knowledge Booster
Similar questions
- Can you give me a detailed step by step process of how to do this please, thank you !arrow_forwardThe researcher extracts a sample of well water and prepares it for TXRF analysis with a 10.00 mg/L V internal standard, like the calibration standards. The result produces SCa = 69297.81 and SV = 13481.2.Determine the concentration of Ca.arrow_forwardUse E5C.1(a) to Plot the data in excel. Place two data sets on the same graph: one for temp vs. x and one for temp vs y (remember, x and y are the mole fractions and they belong on the x-axis). Don’t forget to include the boiling points of the pure substances – they are data, too. Add a trendline (polynomial, 3rd order should work) to each of the coexistence lines separately. Scale the plot appropriately and use the graph to answer the questions. Then complete E5C.1(b)arrow_forward
- 1) 1500 kg mixture contains 15% acetone, 75% water and 10% Acetic acid by weight. a) Calculate the total mole of mixture and molar fractions of each compound. b) Calculate Average Molecular Weight of mixture. c) 2 kmol more Acetic acid is added to the mixture. What would be the mass fractions of this new mixture? (MW: Acetone= 58 g/mol Water= 18 g/mol Acetic acid= 60 g/mol)arrow_forwardQ. . CLO 1.1 Write a note on importance of analytical instruments in petroleum and petrochemical industries. Q. CLO 1.2 How do process control techniques contribute to improving product quality in industry.arrow_forwardCan any of the following be used as primary standards:NaOH, H2SO4, HNO3? .Explain your answer إجابتكarrow_forward
- Answer the following questions. What is the significance of moisture content determination? What are the USP and NF official methods of determining moisture content? Give their advantages and disadvantages. What are the reasons for drying the plant material before using? Enumerate the advantages and disadvantages of the gravimetric and instrumentation method of determining moisture content of a plant material.arrow_forward2 what is the purpose of BSC Level 1 & 2, proper layout, performance, and its application in biosafety assessmentarrow_forwardAutoSave Off CHML 1045 A6 Assignment (1) - Word O Search Danielle Hubbard DH File Home Design Layout References Mailings Review View Help A Share P Comments Insert Draw O Find - - 12 - A A Aav A 三 处T Arial AaBbCcDc AaBbCcDc AaBbCcI AaBbC AaBbCcC Replace Paste BIU - ab x, x A - er A I Normal T No Spac. 1 Table Pa. Heading 1 Heading 2 Dictate Sensitivity Editor Reuse A Select v Files Clipboard Paragraph Styles Sensitivity Reuse FilesA Font Editing Voice Editor L results. Molarity (M) of NaOH (from the bottle of NaOH): 0.204 mol/L Titration Number 3 4 34.44 mL 0.50ML Final Volume buret reading (mL NAOH) 34.00 33.85 mL 0.50mL 33.80 mL 0.50mL 0.50mL Initial Volume buret reading (mL NaOH) Volume NaOH used in titration (mL) = Final Volume buret reading (mL NAOH) - mL Initial Volume buret reading (mL NaOH) 33.94 For calculations multiply mL by 10-3 to convert mL toL Molarity (M or mol/L) NaOH from the bottle of NaOH 0.204 mol/L 10.0 mL 10.0mL 0.204 0.204 0.204 mol/L 10.0 mL 10.0 mL mol/L mol/L…arrow_forward
- 2. Consider the following example GC Chromatogram from a publication about aggression among Mediterranean Acrobat Ants (C. scutellaris). This particular sample was generated by rinsing hydrocarbons from ant exoskeletons. From the chromatogram, what is the minimum number of unique compunds present in the sample? What data led you to that conclusion? (Don't overthink it) 2 8000000 7000000 6000000 5000000 4000000 3000000 2000000 1000000 Counts (Abundance) 5 19 6 7 0 23.00 24.00 10 | 11 13 17 20 14 15 16 12 teel | 22 19 21 ли 25.00 26.00 27.00 Time "Example of a Gas chromatography-Mass spectrography (GS-MS) chromatogram of hydrocarbon molecules in C. scutellaris" by Filippo Frizzi, et.al, in PLoS One is licensed under CC BY 4.0arrow_forwardWhen we analyze the Uniformity of Dosage Units (content uniformity) in compressed tablets during PPQ, should we use the same or different methodology and acceptance criteria as those described in respective USP monograph (905) that is used for CU evaluation of routine product batches? Please explain.arrow_forwardFill in the missing reagent. 1. 2. H₂O* Edit View Insert Format Tools Table 12 pt vv Paragraph wv|B, T| ≤ U¸ v = 1 2 [ v = T² vv₁ vdots Fill in the missing reagent. 1. 2. H3O+ OHarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning