Metrohm 797 VA Computrace Bedienungsanleitung PDF herunterladen (Seite 114)

5 Determination mode

797 VA Computrace – Software

102

For the Electroplating Bath VA Calibration technique “DT Record

calibration curve” (to get the “Calibration factor” for Suppressor

determination), following formula is quoted:

Cal.factor Z

Is the “Calibration factor” to calculate the Sup-

pressor concentration in the bath. It is determined

at the “Evaluation ratio”. The default unit of the

Cal.factor Z is mL/L. For all internal calculations the

unit mL/L is used even if the output unit has been

changed.

V(std)

Is the volume of Suppressor standard solution at

the “Evaluation ratio”.

c(std)

Is the concentration of Suppressor standard solu-

tion.

V(VMS)

Is the volume of VMS (Virgin Make-up Solution).

For the Electroplating Bath VA Calibration technique “DT Suppres-

sors with calibration curve” (for Suppressor determination), follo-

wing formula is quoted:

Is the “Calibration factor” to calculate the Sup-

pressor concentration in the bath. It is determined

at the “Evaluation ratio”. The unit of the “Cali-

bration factor” is mL/L.. For all internal calculati-

ons the unit mL/L is used even if the output unit

has been changed.

V (prod.bath)

Volume of the added plating bath at the “Evalua-

tion ratio”.

Variable addition

Variable addition volumes can be entered in the EDIT VARIED AD-

DITION

window which is opened by clicking the button for the

selected substance in the

Volume column in the Substances tab of

the

EDIT WORKING METHOD PARAMETERS window.

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Metrohm 797 VA Computrace Bedienungsanleitung Seite 114