Dirui CS-T240 - 8.2 Types of Analysis Methods

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If the sample liquid adequate distribution, interaction between liquid and incidence
monochromatic light only happens during absorbing process. No fluorescence, disperse and
photochemical appear. No interaction between substances in the solution while absorbing process. The
absorbency possess conducts nature, and this condition conforms to the Beer-Lambert law
8.2 Types of analysis methods
Method Photometry point
Cell Blank
Absorbance Formula Remark
1-point
E
nd point
analysis
method
L– 0– 0– 0
1＜L≤49
123
3
BBB
++
2
1−
+
LL
AA
2-points
analysis
method
L– M– 0- 0
1＜L＜M≤49
123
3
BBB++
11
( )( )
2
MM LL
A A kA A
−−
+ −+
2-points
Rate
analysis
method
L– M– 0– 0
1＜L＜M≤49
123
3
BBB++
11
22
MM LL
A A AA
t
−−
++
−
Time
(minutes)
between
metering
points L,M
Rate method A
L– M – 0 - 0
1＜L＜M≤49
L +2＜M
123
3
BBB++
△A（M-L）
1-point
rate
double items
analysis
method
Fist half
L– 0 – 0 – 0
1 ＜ M ＜ N≤L ＜ P ＜
Q≤49
123
3
BBB++
2
1−
+
LL
AA
Second half
M – N – P – Q
1 ＜ M ＜ N≤L ＜ P ＜
Q≤49
M+2＜N ，P+2＜Q
123
3
BBB++
△（AQ- P）-k△（AN -M）