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Pharmaceutical Analysis 1 Lab > 01 Instrument and Techniques > Flashcards

01 Instrument and Techniques Flashcards

1
Q

2 branches of analytical chemistry

A

quantitative and qualitative

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2
Q

deals with identification of cmpds and mixtures

A

qualitative analysis

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3
Q

type of analysis employed in identification tests such as the ascertainment of impurities

A

qualitative

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4
Q

determination of the proportions of constituents

A

quantitative

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5
Q

type of analysis employed in limit tests

A

quantitative

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6
Q

also known as analytical method

A

volumetric/titrimetry/titrimetric method

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7
Q

solution of known concentration in titration

A

titrant

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8
Q

standardized solution in titration which is put in a buret

A

titrant

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9
Q

solution of unknown concentration in titration

A

analyte

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10
Q

sample to be titrated

A

analyte

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11
Q

substances found in erlenmeyer flask during titration

A

analyte and indicator

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12
Q

volume of titrant consumed during an analysis was taken as a measure of the amount of active constituent (analyte) in a sample being analyzed using a buret

A

volumetric/titrimetry/titrimetric method

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13
Q

experimental way of determining when equivalent amounts of reactants have reacted together

A

volumetric/titrimetry/titrimetric method

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14
Q

added to allow very pale color change indicating that the reaction proceeded to completion

A

indicator

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15
Q

also known as instrumental method

A

physicochemical method

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16
Q

based on some physical or chemical properties of the substance being analyzed

A

physicochemical/instrumental method

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17
Q

advantage of physicochemical/instrumental method

A

more accurate analysis

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18
Q

name the 6 instrumental techniques

A

chromatography, spectrometry, electrometry, thermal conductivity, refractometry, polarimetry

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19
Q

differential affinity of a component to the mobile or stationary phase; a separation technique

A

chromatography

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20
Q

used to measure the quantity of layers formed under TLC

A

densitometer

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21
Q

interaction between matter and electromagnetic radiation (EMR)

A

spectrometry

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22
Q

in chromatography, which phase is represented by the solvent system

A

mobile phase

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23
Q

in chromatography, which phase is represented by the silica gel w/ Al backing

A

stationary phase

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24
Q

what is the relationship between transmittance and absorbance

A

inversely proportional

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25
Q

what is UV spectroscopy based on

A

absorption of UV light by a cmpd

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26
Q

measures the magnitude of potential charge and current

A

electrometry

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27
Q

unit for potential charge

A

volts

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28
Q

unit for current

A

amps

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29
Q

voltameter and potentiometer are instruments under what instrumental technique

A

electrometry

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30
Q

pertains to the interaction of material with heat

A

thermal conductivity

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31
Q

method of measuring the bending of light rays

A

refractometry

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32
Q

ratio of light velocity in air over light velocity in medium

A

refractive index

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33
Q

involves optical activity

A

polarimetry

34
Q

power of rotating the plane of polarized light

A

optical activity

35
Q

plane of polarized light which rotates clockwise

A

dextrorotatory

36
Q

plane of polarized light which rotates counterclockwise

A

levorotatory

37
Q

optically active substances which is 50% dextrorotatory and 50% levorotatory

A

racemic

38
Q

shows the stimulus and measurement of response of an analytical instrument

A

block diagram

39
Q

in a block diagram: heat, light, current and voltage represent what

A

stimulus

40
Q

in a block diagram: input transducer is the ____

A

detector

41
Q

in a block diagram: amplifier and digitizer represent what

A

signal processor

42
Q

in a block diagram: meter, plotter and computer represent what

A

readout

43
Q

method of analysis in which the determinations are based upon the measurements of weight

A

gravimetric method

44
Q

in gravimetric method, the process of isolating and weighing of the final product with k____, p____, s_____ and d_____ chemical structure

A

known, pure, stable and definite

45
Q

product in gravimetric method should be in what phase

A

solid

46
Q

in gravimetric method, separation of element or compound from sample may be done by e______, p______, v_____, a_____ and i___ e______

A

extraction, precipitation, volatilization, adsorption and ion exchange

47
Q

assay of MgO in Mg citrate oral solution belongs under this method of quantitative analysis

A

gravimetric method

48
Q

assay of Na2SO4 in sodium lauryl sulfate (SLS) belongs under this method of quantitative analysis

A

gravimetric method

49
Q

miscellaneous methods

A

special method

50
Q

method reserved for crude drugs and natural products

A

special method

51
Q

for those which require a distinct type of technique

A

special method

52
Q

assay of alkaloid belongs under this method of quantitative analysis

A

special method

53
Q

assay of specific drug belongs under this method of quantitative analysis

A

special method

54
Q

assay of volatile oils, fats and fixed oils belongs under this method of quantitative analysis

A

special method

55
Q

content determination of water, alcohol, ash and nitrogen belong under this method of quantitative analysis

A

special method

56
Q

biological and microbiological testing belong under this method of quantitative analysis

A

special method

57
Q

potency of antibiotic in a given petri dish with a given bacteria belong under what method of quantitative analysis

A

special method

58
Q

incineration belongs under this method of quantitative analysis

A

special method

59
Q

involves acid-base pair reaction

A

neutralization

59
Q

product of neutralization

A

salt and water (by-product)

60
Q

neutralization reaction depends on the presence of which ions

A

hydrogen and hydroxide

61
Q

also known as volumetric solution

A

titrant

62
Q

titrant = acid; analyte = base

A

acidimetry

63
Q

titrant = base; analyte = acid

A

alkalimetry

64
Q

method where solutions are combined to form an insoluble substance (precipitate)

A

precipitation/precipimetry

65
Q

Mohr belongs under this method of quantitative analysis

A

precipitation/precipimetry

66
Q

Fajans belongs under this type of volumetric analysis

A

precipitation/precipimetry

67
Q

Volhard belongs under this type of volumetric analysis

A

precipitation/precipimetry

68
Q

Are there metals involved in precipitation/precipimetry

A

no

69
Q

complexation happens when an insoluble complex is formed from a p_____ metal ion and a l_____

A

polyvalent, ligand

70
Q

in a chelometry/complexation/complexometry reactions, the e- donor is called the

A

ligand

71
Q

what type of ligand is EDTA in terms of the number of attachments it can provide

A

hexadentate ligand (6 attachments)

72
Q

meaning of EDTA

A

ethylenediaminetetraacetic

73
Q

reaction between an oxidizing and reducing agent which results to the loss and gain of electrons

A

oxidation-reduction

74
Q

basis of oxidation-reduction reaction

A

analytes lost or gained

75
Q

meaning of VILEORA

A

valence increase, loss of electrons, undergoes oxidation, reducing agent

76
Q

meaning of VDGEROA

A

valence decrease, gain of electrons, undergoes reduction, oxidizing agent

77
Q

vs of permanganometry

A

KMnO4

78
Q

vs of cerimetry

A

ceric SO4

79
Q

vs of iodimetry

A

iodine soln

80
Q

vs of iodometry

A

sodium thiosulfate

81
Q

permanganometry, cerimetry, iodimetry and iodometry belong under what type of volumetric analysis

A

oxidation-reduction

Pharmaceutical Analysis 1 Lab (2 decks)

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