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Instrumental Analytical Chemistry > SDG: INTRO > Flashcards

SDG: INTRO Flashcards

1
Q

What is Analytical Chemistry?

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2
Q

Analytical Chemistry: Fields of application

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3
Q

The wheel of development

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4
Q

Biochemistry and Medicine

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5
Q

Environmental Science and Technology

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6
Q

Importance of trace analysis Sample preparation

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7
Q

Geological and Industrial applications

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8
Q

The Computer, Then and Now

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9
Q

What dimensions are we talking about?

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10
Q

Extrinsic defects

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11
Q

Si-surface preparation needs

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12
Q

Ultrathin SiO2 gate oxide

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13
Q

What is Micro and Trace analysis?

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14
Q

SI Units

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15
Q

SI Units

CONVERT

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16
Q

SI Units

PREFIX

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17
Q

Trace elements and their importance

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18
Q

Figures of merit

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19
Q

Accuracy

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20
Q

Precision

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21
Q

Accuracy and Precision

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22
Q

TRUE VALUE

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23
Q

Accuracy and precision

CALCULATE

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24
Q

Accuracy Certified Reference Materials

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25
Q

Certified Reference Material

document

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26
Q

Accuracy and precision role of sample preparation

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27
Q

Sample preparation – cause of errors, key to success

statistical aspects

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28
Q

Sample preparation – cause of errors, key to success

example 1

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29
Q

Sample preparation – cause of errors, key to success

error distribution

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30
Q

Calibration curves

slope

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31
Q

Calibration curves

linear regression

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32
Q

Presentation of data Tables and graphs

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33
Q

Sensitivity
calibration

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34
Q

analytical sensitivity

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35
Q

Detection limit

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36
Q

Dynamic range

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37
Q

accuracy
acid digestion
aliquot
analyte
bias
calibration (curve)
certified reference

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38
Q

complexing agent

confidence interval

confidence limit

contamination

coprecipitation

dilution factor

dry ashing

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39
Q

error

extraction

figure of merit

fitness of purpose

heterogenity

homogenity

interferent

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40
Q

limit of detection

limit of quantitation

linear dynamic range

linearity

liquid liquid extraction

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41
Q

matrix

measurand

method

microwave digestion

outlier

precision

qualitative analysis

quality assurance

quality control

quality control charta

quantitative analysis

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42
Q

reagent

reagent blank

recovery

reference material

repeatability

reproducibility

robustness

sample

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43
Q

selectivity

signal to noise ratio

solvent extraction

speciation

standard

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44
Q

internal standard

standard method

stock solution

sub sample

true value uncertainty

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45
Q

Defining the problem

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46
Q

Methodology for Trace Elemental Analysis

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47
Q

Stages of Trace Analysis

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48
Q

Defining the problem

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49
Q

Sample preparation General concerns

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50
Q

Selecting the method

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51
Q

Sampling – is not gambling!

A

Gold panning is a wonderfully clear example of ‘sampling based on hope’, a clear example of gambling (Pierre Gy)

52
Q

Size does not matter

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53
Q

Distributional heterogeneity

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54
Q

Analysis: sampling + measurement

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55
Q

Impact of sampling errors

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56
Q

Sampling: general strategy

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57
Q

Different Approaches to Sampling

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58
Q

Sources of error

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59
Q

Contamination during sampling

geological

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60
Q

Contamination during sampling

soils and air

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61
Q

Contamination during sampling

water and biological

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62
Q

Contamination during sampling and handling

glassware

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63
Q

Contamination during sampling and handling

And plasticware

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64
Q

Do containers pose problems?

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65
Q

Container materials

platinum and plastics

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66
Q

Container materials

lpde or hpde

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67
Q

How about the chemicals?

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68
Q

Preparing pure chemicals

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69
Q

High purity chemicals

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70
Q

High purity water

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71
Q

storage of High purity water

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72
Q

Not only contamination, but also loss of sample can occur …

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73
Q

Adsorption processes

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74
Q

Preventing adsorption

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75
Q

Complexing agents

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76
Q

Not only contamination, but also loss of sample can occur …

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77
Q

adsorption on glass

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78
Q

adsorption of metal ions on oxide surface from aqueous solution

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79
Q

problems of fe and high ph?

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80
Q

The working environment Particles, particles, particles …

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81
Q

The origin of particles

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82
Q

The origin of contamination any material is a source

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83
Q

The origin of contamination The human is the largest source

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84
Q

Human contamination

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85
Q

Proper sample handling

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86
Q

Classification of clean rooms

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87
Q

Classification of clean rooms

standards

A
88
Q

Classification of clean rooms

sketch

A
89
Q

Classification of clean rooms

Keep critical steps to restricted high quality areas

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90
Q

Classification of clean rooms

GUIDELINES

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91
Q

Cleanroom effectiveness

A
92
Q

Sample preparation

A
93
Q

Sample preparation wet decomposition

A
94
Q

Chemicals used in sample preparation

A
95
Q

Sample preparation wet decomposition

A
96
Q

Sample preparation Acid digestion of inorganics

summary of some common inorganic dissolutions using nitric acid:

A
97
Q

Sample preparation Acid digestion of inorganics

example

A
98
Q

Sample preparation Acid digestion of inorganics

redox reaction

A
99
Q

Sample preparation Aqua Regia

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100
Q

Sample preparation Acid digestion of organics

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101
Q

Sample preparation Comparison open and closed systems

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102
Q

Sample preparation Closed systems

sketch of vessel

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103
Q

Sample preparation Closed systems

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104
Q

Sample preparation Ashing

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105
Q

Sample preparation combustion

dry ashing

low T ashing

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106
Q

Sample preparation Combustion

vessel

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107
Q

Sample preparation Combustion in closed systems

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108
Q

Sample preparation Ashing

advantages

disadvantages

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109
Q

Sample preparation Fusion

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110
Q

Sample Preservation

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111
Q

Method validation

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112
Q

Maintaining quality

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113
Q

Further sample preparation

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114
Q

(Pre)Concentration of sample -> ‘increase’ concentration

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115
Q

Organic extraction of metals

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116
Q

Complexing agents

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117
Q

Organic extraction of metals

equations

A
118
Q

Organic extraction of metals

distributions

A

Instrumental Analytical Chemistry (16 decks)

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