5-5
23. Listed in table 6-1 below are the recommended FCN limits.
a. Values less or equal to FCN limits indicate integral membranes
b. Values greater than FCN limits indicate membrane structural failure
c. If readings are high, recalibrate and repeat all the steps above to confirm.
d. If the reading is still out of tolerance, refer to Section
Chemistry
Membrane
Calibration Standard
FCN Limit
Glucose
2365
2776 or 2747
0.05 g/L
L-Lactate
2329
2776 or 2747
0.03 g/L
Table 6-1
24. See the list of acceptable values in table 6-2 below to interpret linearity readings.
a. Values that are ± 5% of specified tolerance limits indicate good membranes.
b. Values that are out of tolerance indicate an aging enzyme membrane.
c. If readings are out of tolerance limits, recalibrate and repeat all the steps above to confirm.
d. If the reading is still out of tolerance, refer to Section
Chemistry
Calibration Std
Linearity Std
Acceptable Range (g/L)
Glucose
2776 (2.50 g/L)
1531 (9.00 g/L)
8.55 to 9.45
L-Lactate
2776 (0.50 g/L)
1530 (2.67 g/L)
2.54 to 2.80
Table 6-2
Sample Preparation
5.2
A variety of sample types can be analyzed with the 2500 Analyzer. Generally, the only sample preparation that
may
be
required is dilution of the sample to bring the substrate concentration within the linear range of the instrument (see Section
7.2 Measurement Parameter Information
for the working range of each chemistry).
Neither color nor turbidity interferes with measurements.
Small particles do not affect the reaction in the sample module that houses the probes, but samples with particles large
enough to clog the sipper should be avoided.
Run Batch
5.3
5.3.1 Create Batches
1. From the Run Batch tab of the Run screen, select a sample rack/plate and create batches for your samples.
1
If you are using units other than g/L for the FCN test, refer to
Appendix B – Concentration Unit
Conversion for conversion values.
Summary of Contents for YSI 2500
Page 1: ...USER MANUAL 525021 YSI 2500 Biochemistry Analyzer OPERATIONS AND MAINTENANCE MANUAL...
Page 34: ...5 11 8 The Stat sample results are displayed on the Run Stat tab Stat sample results...
Page 88: ...13 1 13 Notices Declaration of Conformity 13 1...
Page 96: ...17 1 17 Appendix D Line Power Cord and Plug Wiring United Kingdom United States Europe...
