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Pharmaceutical Analysis 1 Lab > 01 Instrument and Techniques > Flashcards

01 Instrument and Techniques Flashcards

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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
what is UV spectroscopy based on
absorption of UV light by a cmpd
26
measures the magnitude of potential charge and current
electrometry
27
unit for potential charge
volts
28
unit for current
amps
29
voltameter and potentiometer are instruments under what instrumental technique
electrometry
30
pertains to the interaction of material with heat
thermal conductivity
31
method of measuring the bending of light rays
refractometry
32
ratio of light velocity in air over light velocity in medium
refractive index
33
involves optical activity
polarimetry
34
power of rotating the plane of polarized light
optical activity
35
plane of polarized light which rotates clockwise
dextrorotatory
36
plane of polarized light which rotates counterclockwise
levorotatory
37
optically active substances which is 50% dextrorotatory and 50% levorotatory
racemic
38
shows the stimulus and measurement of response of an analytical instrument
block diagram
39
in a block diagram: heat, light, current and voltage represent what
stimulus
40
in a block diagram: input transducer is the ____
detector
41
in a block diagram: amplifier and digitizer represent what
signal processor
42
in a block diagram: meter, plotter and computer represent what
readout
43
method of analysis in which the determinations are based upon the measurements of weight
gravimetric method
44
in gravimetric method, the process of isolating and weighing of the final product with k____, p____, s_____ and d_____ chemical structure
known, pure, stable and definite
45
product in gravimetric method should be in what phase
solid
46
in gravimetric method, separation of element or compound from sample may be done by e______, p______, v_____, a_____ and i___ e______
extraction, precipitation, volatilization, adsorption and ion exchange
47
assay of MgO in Mg citrate oral solution belongs under this method of quantitative analysis
gravimetric method
48
assay of Na2SO4 in sodium lauryl sulfate (SLS) belongs under this method of quantitative analysis
gravimetric method
49
miscellaneous methods
special method
50
method reserved for crude drugs and natural products
special method
51
for those which require a distinct type of technique
special method
52
assay of alkaloid belongs under this method of quantitative analysis
special method
53
assay of specific drug belongs under this method of quantitative analysis
special method
54
assay of volatile oils, fats and fixed oils belongs under this method of quantitative analysis
special method
55
content determination of water, alcohol, ash and nitrogen belong under this method of quantitative analysis
special method
56
biological and microbiological testing belong under this method of quantitative analysis
special method
57
potency of antibiotic in a given petri dish with a given bacteria belong under what method of quantitative analysis
special method
58
incineration belongs under this method of quantitative analysis
special method
59
involves acid-base pair reaction
neutralization
59
product of neutralization
salt and water (by-product)
60
neutralization reaction depends on the presence of which ions
hydrogen and hydroxide
61
also known as volumetric solution
titrant
62
titrant = acid; analyte = base
acidimetry
63
titrant = base; analyte = acid
alkalimetry
64
method where solutions are combined to form an insoluble substance (precipitate)
precipitation/precipimetry
65
Mohr belongs under this method of quantitative analysis
precipitation/precipimetry
66
Fajans belongs under this type of volumetric analysis
precipitation/precipimetry
67
Volhard belongs under this type of volumetric analysis
precipitation/precipimetry
68
Are there metals involved in precipitation/precipimetry
no
69
complexation happens when an insoluble complex is formed from a p_____ metal ion and a l_____
polyvalent, ligand
70
in a chelometry/complexation/complexometry reactions, the e- donor is called the
ligand
71
what type of ligand is EDTA in terms of the number of attachments it can provide
hexadentate ligand (6 attachments)
72
meaning of EDTA
ethylenediaminetetraacetic
73
reaction between an oxidizing and reducing agent which results to the loss and gain of electrons
oxidation-reduction
74
basis of oxidation-reduction reaction
analytes lost or gained
75
meaning of VILEORA
valence increase, loss of electrons, undergoes oxidation, reducing agent
76
meaning of VDGEROA
valence decrease, gain of electrons, undergoes reduction, oxidizing agent
77
vs of permanganometry
KMnO4
78
vs of cerimetry
ceric SO4
79
vs of iodimetry
iodine soln
80
vs of iodometry
sodium thiosulfate
81
permanganometry, cerimetry, iodimetry and iodometry belong under what type of volumetric analysis
oxidation-reduction

Pharmaceutical Analysis 1 Lab (2 decks)

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