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Anachem 101 > Nature of Analytical Chemistry > Flashcards

Nature of Analytical Chemistry Flashcards

1
Q

Often called the central science

A

Chemistry

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2
Q

A measurement science consisting of a set of powerful ideas

and methods that are useful in all fields of science, engineering, and medicine.

A

Analytical Chemistry

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3
Q

True or False
An analyst must be able to design, carry out, and interpret measurements with the context of the fundamental biological problem with which he or she is presented.

A

False

*fundamental technological problem

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4
Q

Reveals the identity of the constituents (elements and compounds) in a sample.

A

Qualitative analysis

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5
Q

True or False

Quantitative analysis reveals the identity of the constituents (elements and compounds) in a sample.

A

False

It is Qualitative Analysis

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6
Q

Indicates the amount of each substance in a sample

A

Quantitative Analysis

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7
Q

True or False

Qualitative Analysis indicates the amount of each substance in a sample

A

False

It should be Quantitative Analaysis

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8
Q

For a ________ has a known sensitivity limit so that negative and positive results may be seen in the right perspective.

A

qualitative analysis

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9
Q

True or False

quantitative analysis is the relation between measurement and analyte must obey a strict and measurable proportionality

A

True

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10
Q

An indispensable servant of modern technology and has provided an important basis for chemical development.

A

Chemical analysis

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11
Q 
True or False 
The Function of Analytical Chemistry are:
Fundamental Research
Product Development
Product Quality Control
Monitoring and Control of Pollutants
Assay
Medical and Clinical Studies
A

True

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12
Q 
Fill in the blanks:
The Function of Analytical Chemistry are:
\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_
Product Development
Product Quality Control
Monitoring and Control of \_\_\_\_\_\_\_\_\_\_\_
Assay
Medical and Clinical Studies
A

Fundamental Research

Pollutants

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13
Q 
What is the missing function?
The Function of Analytical Chemistry are:
Fundamental Research
\_\_\_\_\_\_\_\_\_\_\_\_
Product Quality Control
Monitoring and Control of Pollutants
Assay
Medical and Clinical Studies
A

Product Development

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14
Q

first steps in unravelling the details of an unknown

A

Fundamental Research

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15
Q

The design and development of a new product often depend upon establishing a link between its chemical composition and its physical properties or performance

A

Product Development

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16
Q

involve the identification of its constituents by qualitative chemical analysis

A

Fundamental Research

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17
Q

True or False

Typical examples of Product Development are development of alloys and formulation of new drugs

A

False

formulation of new drugs is not included; its under fundamental research

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18
Q

Development of alloys and and polymer composites are what examples under for?

A

Product Development

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19
Q

raw materials and finished products are subjected to extensive chemical analysis

A

Product Quality Control

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20
Q

necessary constituents must be kept at the optimum levels

A

Product Quality Control

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21
Q

Value of the ore is set by its metal content

A

Assay

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22
Q

True or False
Assay
levels of various elements and compounds in body fluids are important indicators of physiological disorders.

A

False

Medical and Clinical Studies

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23
Q 
Function of Analytical Chemistry except:
A. assay
B. fundamental research
C. product quality control
D. screening
A

D. screening

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24
Q

A measurement or observation in which the sample is replaced by a simulated matrix, the conditions otherwise being identical to those under which a sample would be analyzed

A

Blank

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25
Q

Sometimes called the variablity

A

Precision

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26
Q

Constituent of the sample which is to be studied by quantitative measurements or identified qualitatively

A

Analyte

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27
Q

Process of determining the proportionality between analyte concentration and a measured quantity

A

Calibration

28
Q

Closeness of an experimental measurement or result to the true or accepted value

A

Accuracy

29
Q

A large proportion of analytical measurements is subject to interference from other constituents of the sample

A

Separation

30
Q

Constituent of the sample to be studied by quantitative measurements or identified qualitatively

A

Analyte

31
Q

A highly accurate determination

A

Assay

32
Q

A procedure which enables the response of an instrument to be related to the mass, volume or concentration of an analyte

A

Calibration

33
Q

Amount of a substance present in a given mass or volume of another substance

A

Concentration

34
Q

A component of a sample

A

Constituent

35
Q

Smallest amount or concentration of an analyte that can be detected by a given procedure and with a given degree of confidence

A

Detection Limit

36
Q

True or False

Determination is a quantitative measure of an analyte w/an accuracy of considerably better than than 10%

A

True

37
Q

That amount of a substance which can be indirectly equated w/one mole (6.023x1023 of hydrogen ions

A

Equivalent

38
Q

A semi-quantitative measure of the amount of an analyte present in a sample; having no accuracy no better than about 10%

A

Estimation

39
Q

An effect which alters or obscures the behavior of an analyte

A

Interference

40
Q

A compound or element added to all calibration standards and sample in a constant known amount

A

Internal Standard

41
Q

Treatment of a sample w/a reagent to prevent interference

A

Masking

42
Q

Remainder of the sample of which the analyte forms a part

A

Matrix

43
Q

overall description of the instructions

A

Method

44
Q

random or indeterminate error associated with a measurement or result

A

Precision

45
Q

Whose purity and stability are particularly well established

A

Primary Standard

46
Q

A description of the practical steps

A

Procedure

47
Q

A chemical used to produce a specified reaction

A

Reagent

48
Q

A substance or portion of substance

A

Sample

49
Q

Change in the response from an analyte relative to a small variation

A

Sensitivity

50
Q

ability of a method to facilitate detection or determination of an analyte

A

Sensitivity

51
Q

A pure substance which reacts in a quantitative and known stoichiometric manner

A

Standard

52
Q

The principle upon which a group of methods is based

A

Technique

53
Q

Response from an analyte is measured before and after adding a known amount of that analyte

A

Standard Addition

54
Q

Can be distinguished visually or w/the aid of a microscope

A

heterogenous

55
Q

The process of determining how much of a given sample is the material by its indicated name

A

Assay

56
Q

volume of standard reagent solution reacting w/analyte

A

volumetric

57
Q

weight of pure analyte or of a stoichiometric compound containing it

A

gravimetric

58
Q

intensity of electromagnetic radiation emitted or absorbed by the analyte

A

spectrometric

59
Q

intensity of nuclear radiations emitted by the analyte

A

radiochemical

60
Q

electrical properties of analyte solutions

A

electrochemical

61
Q

abundance of molecular fragments derived from the analyte

A

mass spectrometric

62
Q

physico-chemical properties of individual analytes after separation

A

chromatographic

63
Q

physico-chemical properties of the sample as it is heated and cooled

A

thermal

64
Q

work for only one analyte

A

specific

65
Q

apply to only a few analytes are

A

selective

Anachem 101 (5 decks)

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