Instrumental Analysis questions with verified
answers
ADC Ans✓✓✓ contains a sampling rate
ADC Ans✓✓✓ Converts an analog voltage into a digital binary number
so that computers can understand the information gathered by the
instrument about the sample being analyzed.
ADC Ans✓✓✓ Done by sampling and recording the analog output of an
input transducer at regular time intervals using an ADC.
Analog signals Ans✓✓✓ Continuous signals ( no gaps in the signal)
chemical noise Ans✓✓✓ uncontrollable variables that affect the
chemistry of the system being analyzed.
Chemical Noise Ans✓✓✓ uncontrollable variables that affect the
chemistry of the system being analyzed. (Temperature, pressure,
humidity, light intensity, fumes)
Classical method Ans✓✓✓ does not use electricity
Classical method Ans✓✓✓ use of chemical solvents and glassware
, Classical vs. Instrumental methods Ans✓✓✓ analysis properties
determined in the instrumental differ from those determined in the
classical methods.
DAC Ans✓✓✓ Converts computer electrical signals to analog electrical
signals for instruments.
Data Domains Ans✓✓✓ The various modes of encoding information
Digital-domain signals Ans✓✓✓ discrete; not continuous. The signal
can be monitored in regular time intervals.
Digital-domain signals Ans✓✓✓ information contained in the analog
domain can be converted to the digital domain via sampling.
DSR Ans✓✓✓ How well an ADC can distinguish between similar
voltage readings.
DSR Ans✓✓✓ Is strongly related to an instrument's sensitivity.Every
voltage will be given a specific binary number.
Dynamic Range Ans✓✓✓ The useful and linear range of a calibration
curve
answers
ADC Ans✓✓✓ contains a sampling rate
ADC Ans✓✓✓ Converts an analog voltage into a digital binary number
so that computers can understand the information gathered by the
instrument about the sample being analyzed.
ADC Ans✓✓✓ Done by sampling and recording the analog output of an
input transducer at regular time intervals using an ADC.
Analog signals Ans✓✓✓ Continuous signals ( no gaps in the signal)
chemical noise Ans✓✓✓ uncontrollable variables that affect the
chemistry of the system being analyzed.
Chemical Noise Ans✓✓✓ uncontrollable variables that affect the
chemistry of the system being analyzed. (Temperature, pressure,
humidity, light intensity, fumes)
Classical method Ans✓✓✓ does not use electricity
Classical method Ans✓✓✓ use of chemical solvents and glassware
, Classical vs. Instrumental methods Ans✓✓✓ analysis properties
determined in the instrumental differ from those determined in the
classical methods.
DAC Ans✓✓✓ Converts computer electrical signals to analog electrical
signals for instruments.
Data Domains Ans✓✓✓ The various modes of encoding information
Digital-domain signals Ans✓✓✓ discrete; not continuous. The signal
can be monitored in regular time intervals.
Digital-domain signals Ans✓✓✓ information contained in the analog
domain can be converted to the digital domain via sampling.
DSR Ans✓✓✓ How well an ADC can distinguish between similar
voltage readings.
DSR Ans✓✓✓ Is strongly related to an instrument's sensitivity.Every
voltage will be given a specific binary number.
Dynamic Range Ans✓✓✓ The useful and linear range of a calibration
curve
