| dc.description.abstract | Semi Automatic Potentiometric Titrator had been designed to make easy
titration process that still done manually and to decrease deliquency by human
error. It has been tested on strong acid (HCl) with strong base (NaOH) titration
and weak acid (CH
COOH) with strong base (NaOH) titration. It uses peristaltic
pump to transmit titrant, pH/mV meter with pH electrode to detect the potential
value where output connected with input ADC 0804 and then output from ADC
will enter the computer that been programmed with Pascal language via PPI 8255
interface. Examination of the titration process were performed by variation of HCl
concentration (10
-3
3
, 10
-2
, 10
-1
) and CH
viii
3
COOH (10
-3
, 10
-2
, 10
-1
) as titrate and
NaOH 10
-1
as titrant. The end point of semi automatic titrator compared by
conventional titration in the same condition. The result of the examination showed
that semi automatic titrator have some advanteges, such as; it can read potential
value per second, the solution for titrant was fewer, faster, and the operator can do
the other works. Based on the result of the t-test of titration, it can be explained
that semi automatic potentiometric titrator compatible significantly with
conventional titration so it can used as an alternative for titration process.
Key words : Titration, Potential, HCl, NaOH, CH
COOH, pH/mV meter,
peristaltic pump, ADC, Computer, the end point | en_US |
