問題一覧
1
Measurement of reflected light in a suspension
nephelometry
2
Macro
100-1000 mg
3
Branch of science that studies the interaction between electromagnetic radiation and matter
spectroscopy
4
For quantitative determination of metals
atomic absorption spectrometry
5
Number of cycle per unit distance
wave number
6
1 titrant
direct titration
7
Difference in weight between total ash and residue after treatment of total ash with water
water soluble ash
8
Point with the max upward displacement
crest
9
Residue after boiling the total ash with 3n hcl and igniting the remaining insoluble matter
acid insoluble ash
10
Due to uncontrollable variables. AKA intermediate. Affects precision
random error
11
Equipment
chromatograph
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For determination of functional group
infrared
13
Aka back titration
residual
14
A procedure by which solutes are separated by a differential migration process in a system consistin of 2 or more phases
chromatrography
15
For analysis of gaseous ions
mass spectrometry
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Semi micro
10-100 mg
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Conversion of ammonium to ammonia
distillation
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Distance between 2 identical adjacent point in wave
wavelength
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Point with the max downward displacement
trough h
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Visible output
chromatogram
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Micro
1-10 mg
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For correction. To enhance reliability of the end point
blank determination
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Sample being analyzed aka analyte
titrand
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Reagent of known concentration
titrant
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Separate solids from mixtures
buchner funnel
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Total of class plant principle
proximate
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Functional group that absorbs maximum radiation in the UV or visible regions
chromophore
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Closeness of two or more actual measurements obtained in exactly the same way
precision
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Residue left after incineration of an organic material which represent the amount of inorganic impurity
ash content
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With definite value and identifiable cause. AKA determinate. Affects accuracy
systematic
31
Aka stoichiometric point. Theoretical point at which equivalent amounts of the analyte and titrant have reached
equivalence point
32
Determination of a metal in the presence of another metal
masking
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Actual point at which equivalent amounts of the analyte and titrant have reacted. Physical change occurs
end point
34
Measurement of transmitted light in a suspension. Antibiotics and vitamins
turbidimetry
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Substance used to standardize the titrant
standard
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The time required for one cycle to pass a fixed point in space
period
37
Residue after incinerating at 325 + 25 C
total ash
38
Mobile phase
eluent
39
Indicator for cerimetry
o-phenanthroline
40
Suction drawing out fluids or removing obstruction
aspirator
41
For structure elucidation
nmr
42
the number of cycle which pass a fixed point in space per second
frequency
43
Aka reaction capacity values
equivalance factor
44
Closeness of the actual/ result value to the theoretical (true) value
accuracy
45
Functional group which does not give rish to an absorption badn by itslef, but upon being attached to a chromophore
auxochrome
46
The maximum height of a wave
amplitude
47
Mobile phase + sample
eluate
48
Single chemical species
ultimate
49
Filters compound
gooch crucible
50
Determination of the concentration of the titrant
standardization
51
Conversion or organic N into ammonium by adding sulfuric acid
digestion
52
Ultra micro
<1.0 mg
53
Quantitiative analysis involving the separation if the analyte from a sample by physical or chemical meands
gravimetric analysis
54
For quantitative and qualitative analysis
uv vis
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Measurement of excess energy lost by emission. . Thiamine and riboflavin
fluorometry