Skip to main content

Advertisement

Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Table 5 Ruggedness and Robustness of the methylphenidate sensors

From: New potentiometric sensors for methylphenidate detection based on host–guest interaction

Parameters Sensor 1 Sensor 2 Sensor 3
Recovery, % RSD, % Recovery, % RSD, % Recovery, % RSD, %
Operators 1 98.52 2.2 98.0 2.16 99.24 2.45
2 98.33 2.3 98.5 3.34 99.21 2.75
Instrument 1a 98.51 2.3 98.0 2.53 99.12 2.62
2 98.41 2.4 97.5 3.64 98.51 2.53
Change in day
 Intra-day 100.74 2.38 100.26 2.18 101.33 2.21
 Inter-day 98.33 2.5 97.1 2.4 99.23 2.7
Life time during
 After 8 weeks 97.5 3.9 97.0 3.8 98.0 3.96
  1. aComparison between two instrument (HANNA pH 211 and WTW pH/mV meter (model 523; 8120 Weilheim, Germany