問題一覧
1
Ultra micro
<1.0 mg
2
Micro
1-10 mg
3
Semi micro
10-100 mg
4
Macro
100-1000 mg
5
Total of class plant principle
proximate
6
Single chemical species
ultimate
7
Due to uncontrollable variables. AKA intermediate. Affects precision
random error
8
With definite value and identifiable cause. AKA determinate. Affects accuracy
systematic
9
Closeness of the actual/ result value to the theoretical (true) value
accuracy
10
Closeness of two or more actual measurements obtained in exactly the same way
precision
11
Reagent of known concentration
titrant
12
Sample being analyzed aka analyte
titrand
13
Aka stoichiometric point. Theoretical point at which equivalent amounts of the analyte and titrant have reached
equivalence point
14
Actual point at which equivalent amounts of the analyte and titrant have reacted. Physical change occurs
end point
15
Determination of the concentration of the titrant
standardization
16
Substance used to standardize the titrant
standard
17
Aka reaction capacity values
equivalance factor
18
1 titrant
direct titration
19
Aka back titration
residual
20
For correction. To enhance reliability of the end point
blank determination
21
Indicator for cerimetry
o-phenanthroline
22
Determination of a metal in the presence of another metal
masking
23
Quantitiative analysis involving the separation if the analyte from a sample by physical or chemical meands
gravimetric analysis
24
Suction drawing out fluids or removing obstruction
aspirator
25
Separate solids from mixtures
buchner funnel
26
Filters compound
gooch crucible
27
Branch of science that studies the interaction between electromagnetic radiation and matter
spectroscopy
28
Functional group that absorbs maximum radiation in the UV or visible regions
chromophore
29
Functional group which does not give rish to an absorption badn by itslef, but upon being attached to a chromophore
auxochrome
30
Point with the max upward displacement
crest
31
Point with the max downward displacement
trough h
32
The maximum height of a wave
amplitude
33
Distance between 2 identical adjacent point in wave
wavelength
34
Number of cycle per unit distance
wave number
35
The time required for one cycle to pass a fixed point in space
period
36
the number of cycle which pass a fixed point in space per second
frequency
37
For analysis of gaseous ions
mass spectrometry
38
For structure elucidation
nmr
39
For quantitative and qualitative analysis
uv vis
40
For determination of functional group
infrared
41
For quantitative determination of metals
atomic absorption spectrometry
42
A procedure by which solutes are separated by a differential migration process in a system consistin of 2 or more phases
chromatrography
43
Mobile phase
eluent
44
Mobile phase + sample
eluate
45
Equipment
chromatograph
46
Visible output
chromatogram
47
Measurement of excess energy lost by emission. . Thiamine and riboflavin
fluorometry
48
Measurement of transmitted light in a suspension. Antibiotics and vitamins
turbidimetry
49
Measurement of reflected light in a suspension
nephelometry
50
Residue left after incineration of an organic material which represent the amount of inorganic impurity
ash content
51
Residue after incinerating at 325 + 25 C
total ash
52
Residue after boiling the total ash with 3n hcl and igniting the remaining insoluble matter
acid insoluble ash
53
Difference in weight between total ash and residue after treatment of total ash with water
water soluble ash
54
Conversion or organic N into ammonium by adding sulfuric acid
digestion
55
Conversion of ammonium to ammonia
distillation