Page 12 - 6_TOC in daily practice

SCA-130-605

■ High Sensitivity Measurement Option ■ Calibration Curve Characteristics
Adding the high-sensitivity measurement Slope a: 36.88
option enables high-sensitivity measurements Intercept b: 1.135
in the 0 to 1 mgC/L range FS. This option Correlation coeff r: 0.9997
achieves high sensitivity by using a highly Result uncertainty: 33.33%
sensitive catalyst and increasing the Probability of error: 5%
maximum sample injection volume to 500 µL
(standard specification is 150 µL).

■ Calibration Curve
Calibration Concentration Area counts
Point [mg/L]
1 0.250 10.420
2 0.500 19.210
3 0.750 28.100
4 1.000 37.780

■ Recommended analyzer / Configuration
TOC-4200
High Sensitivity Measurement Option
Carrier Gas: High-purity air or
High-purity nitrogen,
(N 2 Carrier Gas High
Sensitivity Measurement
Option required)

0,500
0,450
0,400
0,350
0,300
0,250
0,200
0,150
0,100
0,050
0,000
11:58 12:31 13:05 13:39 14:14 14:48 15:23 15:56 16:31 17:04 17:39 18:14 18:48 19:23 19:58 20:32 21:05 21:39 22:12 22:48 23:22 23:56 00:30 01:06 01:40 02:15 02:49

Fig. TOC-4200 Measurement results in mg/l of ultra pure water