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Dirui CS-T240 - Page 79

Dirui CS-T240
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79
Example 3:ALT/GPT - Alanine aminotransferase (IFCC)
wavelength
Main 340nm
Absorbance range
0
~
2A
Test mode
Rate assay
Optical path
10mm
Reagent
1
:
240uL
;
2
:
60uL
sample
15uL
Single reagent
4 reagent 1and 1reagent 2
Mixing storage
2~8℃ 5days stability
temperature
37
℃
incubation
5min
reaction
60s delay,measure 60-120s
“0”
340nm,blank pipe
sensitivity
0.30mA/min equals to 1.0U/L
Linearity range
450U/L
(
7.5ukat/L
)
calibration
Unit conversion
1U/L=16.67×10-3ukat/L
Reference value
37
℃:
Male
:
<40U/L
(
<0.67ukat/L
);
Female
:
<31U/L
(
<0.52ukat/L
)
Calculating method:
P*SV*6.22
1000*TV*A/min
/L
�
)=(UALT
TV=The total reaction volume (mL)
SV=sample volume(mL)
P=optical path of colorimetric cup(cm)
6.22=NADH position mmol extinction coefficient at 340nm (334nm:6.18,365nm:
3.40)

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