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Analytical Chemistry > Introduction to Analytical Chemistry > Flashcards

Introduction to Analytical Chemistry Flashcards

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1
Q

Branch of chemistry dealing with quantitative and qualitative determination for the characterization of matter.

A

Analytical Chemistry

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2
Q

“Science of chemical measurements”

A

Analytical Chemistry

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3
Q

It deals with
o Separating,
o Identifying,
o And quantifying the amount(s) of the component(s) of an analyte.

A

Analytical Chemistry

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4
Q

The component/s of a sample that are to be determined

A

Analyte

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5
Q

How can the species of interest be separated from the sample matrix for better quantitation and identification?

A

Separation

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6
Q

Does the sample contain substance A?

A

Detection

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7
Q

What is the identity of the substance in the sample?

A

Identification

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8
Q

How much of substance A is in the sample?

A

Quantitation

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9
Q

Two Types of chemical analysis

A

Quantitative Analysis & Qualitative Analysis

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10
Q

Deals with the determination of how much
more of one or more constituent is present.

A

Quantitative Analysis

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11
Q

Deals with the identification of elements, ions, and compounds in a sample.

A

Qualitative Analysis

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12
Q

Uses chemical analysis and instrumental analysis

A

Quantitative Analysis

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13
Q

Uses elemental analysis and indentification of sample structure to be analyzed

A

Qualitative Analysis

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14
Q

Representative of the tested material

A

Sample

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15
Q

all substances in the sample

A

Matrix

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16
Q

specific substance we measure

A

Analyte

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17
Q
  1. Gathering measurements
  2. Reporting results
  3. Posing a question
  4. Using an appropriate sample
  5. Sample preparation
A

Analytical technique

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18
Q

Occurs with other substances but exhibits preferences for the substance of interest

A

Selective Test/Reaction

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19
Q

Only with the substance of interest

A

Specific test/reaction

20
Q

It is a scientific principle useful in providing information about composition.

A

Technique

21
Q

It is the adaptation of the technique selective for the sample, a means to analyze a sample of a certain analyte in a specific matrix.

A

Method

22
Q

It outlines directions for the use of the method.

A

Procedure

23
Q

It is the set of stringent written directions that must be followed for a given purpose and requirement.

A

Protocol

24
Q

Provide the hierarchy of methodology

A

1.Technique
2. Method
3. Procedure
4. Protocol

25
Q

Methods of Analysis

A

Classical Method & Instrumental Method

26
Q

The earliest methods of analysis

A

Classical Method

27
Q

These analyses are based on the changes in mass or volume to determine the amount of analyte

A

Classical Method

28
Q

Also termed as wet chemical methods as these involves liquid phases in analysis.

A

Classical Method

29
Q

Involves the isolation and/or conversion of a sought-for
substance into a form that can be weighed directly/indirectly.

A

Gravimetry

30
Q

Involves the measurement of the volume of a solution
containing sufficient reagent (titrant) to react with the analyte.

A

Volumetry

31
Q

Utilize electrical properties related to the analyte to
measure its amount.

A

Electrochemical

32
Q

Take advantages of the interaction of the electromagnetic
radiation with analyte to measure its amount.

A

Spectroscopic

33
Q

Involves manipulation of temperature to produce the measured parameter.

A

Thermoanalytical

34
Q

Involve separation of sample components based on affinity to a mobile and stationary phase.

A

Chromatographic

35
Q

most popular coupled methods to enhance analytical performance

A

chromatographic methods combined with spectroscopic
methods.

36
Q

Types of Analysis

A

Complete Analysis, Partial Analysis & Ultimate Analysis

37
Q

All constituents in the sample are being determined quantitatively.

A

Complete Analysis

38
Q

Determines the number of certain constituents in a sample,

A

Partial Analysis

39
Q

Percent of each element in a substance, usually for determining the formula of a substance.

A

Ultimate Analysis

40
Q

Provide the required sample mass of each method:
Macro:
Semimicro:
Micro:
Ultramicro:

A

Macro: >100mg
Semimicro: 10-100mg
Micro: 1-10mg
Ultramicro: <1mg

41
Q

Provide method to be used in each given sample mass
1. >100mg
2. 10-100mg
3. 1-10mg
4. <1mg

A
  1. Macro
  2. Semimicro
  3. Micro
  4. Ultramicro
42
Q

Provide the type of constituent applicable for each analyte level
1. >1%
2. 0.01-1%
3. 0.001-0.01%
4. <0.0001-0.001%

A
  1. Major
  2. Minor
  3. Trace
  4. Ultra-trace
43
Q

Provide the type of analyte level applicable for each constituent
1. Major
2. Minor
3. Trace
4. Ultra-trace

A
  1. > 1%
  2. 0.01-1%
  3. 0.001-0.01%
  4. <0.0001-0.001%
44
Q

Provide the correct order of steps in quantitative analysis

A

Step 1: Make of an overall plan
Step 2: Sampling
Step 3: Sample Presentation
Step 4: Analysis
Step 5: Calculation and Evaluation of Result

45
Q

Provide the correct order of steps in quantitative analysis

A

Step 1: Make of an overall plan
Step 2: Sampling
Step 3: Sample Presentation
Step 4: Analysis
Step 5: Calculation and Evaluation of Result

Analytical Chemistry (2 decks)

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