Advanced Instruments OsmoTECH XT, Руководство пользователя

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Quality control
9
OsmoTECH XT Single-Sample Micro-Osmometer User Guide
Interpreting results
Data generated using Advanced Instruments standards and reference solutions may be analyzed according to the accuracy
and precision specifications of the instrument (see
Performance characteristics ).
Laboratories may choose to employ one, two, or three standard deviations (SD) for accuracy based on what is relevant in
their laboratories. For normally distributed data, approximately 68% of the individual data values will fall within one
standard deviation of the mean, approximately 95% within two standard deviations, and approximately 99.7% within three
standard deviations.
Advanced Instruments Standards
and Reference Solutions
Precision
Accuracy (mOsm/kg H
2
O)
1 SD 2 SD 3 SD
Clinitrol™ 290 Reference Solution Standard deviation ≤ 2 mOsm/kg H
2
O 288–292 286–294 284–296
0 mOsm/kg Calibration Standard Standard deviation ≤ 2 mOsm/kg H
2
O 0-2 0-4 0-6
50 mOsm/kg Calibration Standard Standard deviation ≤ 2 mOsm/kg H
2
O 48–52 46–54 44–56
100 mOsm/kg Calibration Standard Standard deviation ≤ 2 mOsm/kg H
2
O 98–102 96–104 94–106
200 mOsm/kg Calibration Standard Standard deviation
≤
2 mOsm/kg H
2
O 198–202 196–204 194–206
300 mOsm/kg Calibration Standard Standard deviation ≤ 2 mOsm/kg H2O 298–302 296–304 294–306
400 mOsm/kg Calibration Standard Standard deviation ≤ 2 mOsm/kg H
2
O 398–402 396–404 394–406
500 mOsm/kg Calibration Standard Coefficient of variation ≤ 0.5% 497-503 494-506 491-509
850 mOsm/kg Calibration Standard Coefficient of variation ≤ 0.5% 845-855 840-860 835-865
900 mOsm/kg Calibration Standard Coefficient of variation
≤
0.5% 895-905 890-910 885-915
1000 mOsm/kg Calibration Standard Coefficient of variation ≤ 0.5% 995–1005 990–1010 985–1015
1500 mOsm/kg Calibration Standard Coefficient of variation ≤ 1% 1485–1515 1470–1530 1455–1545
2000 mOsm/kg Calibration Standard Coefficient of variation ≤ 1% 1980–2020 1960–2040 1940–2060
3000 mOsm/kg Calibration Standard Coefficient of variation ≤ 1% 2970–3030 2940–3060 2910–3090
4000 mOsm/kg Calibration Standard Coefficient of variation
≤
1% 3960–4040 3920–4080 3880–4120