High Technology, Inc.
109 Production Road,
Walpole MA USA 02081
Document Number
OM-E-FC-360-30
Revision Level
Rev. 3
Prepared By
J.S. Bolio
Approved By
S. Titov
Effective date
8/15/2016
Operator’s Manual: HTI BioChem FC-360
Page 84 of 217
HIGH TECHNOLOGY, INC. PROPRIETARY AND CONFIDENTIAL
Interval between blanks:
Enter the maximum possible time interval for the run of the reagent blank.
72 hours is recommended. The reagent blank should be run each time the reagent bottle is refilled, the
reagent batch is changed, or the method is calibrated.
Repetition:
Enter a minimum concentration value, below which the Auto analyzer will repeat the test
under identical sample and reagent(s) conditions, and will show that this result has been repeated.
Linear Limit:
Enter the upper linearity limit provided by the reagent manufacturer. If this value is
exceeded, the instrument will dilute the sample to obtain a value within the linear range. The
instrument will run the dilution using half the sample volume programmed in the
General
tab. The
software will show that the sample has been re-diluted. The result will be calculated using a dilution
factor for compensation. If the new result is still not within the programmed values, the sample will be
diluted again until the minimum volume indicated in the
Advanced
tab is used.
8.1.4.1.2 Calculations
Monochromatic Reading
Ab =
Reagent Blank Absorbance
As =
Sample Absorbance
F =
Factor programmed or obtained by the method calibration C = Concentration
C =
(As
– Ab) • F
Bichromatic Reading
A
B
=
Reagent Blank Absorbance
A
B
’ =
Reagent Blank Bichromatic Absorbance
Ab =
Reagent Blank Calculated Absorbance
As =
Sample Absorbance
As’ =
Sample Bichromatic Absorbance
Am =
Sample Calculated Absorbance
F =
Factor programmed or obtained by the method calibration
C =
Concentration
Ab = A
B
- A
B
’
Am = As -
As’
C = (As
– Ab) • F