Chromatography Forum

colleagues,

I need to measure pH and specific gravity of multiple samples in automatic fashion. the system should be capable of running calibration / qc samples and then a sequence of samples, providing the output data as csv for seamless lims integration.
the only multiparameter system known to me is LiQC from Mettler Toledo
but it wants 9 ml of a sample as a minimum for this kind of multiparameter measurement. this is too much for me.

I could accept separate measurement of pH and sg, but while density meter with autosampler is available from anton paar (consumes 3 ml of sample), I cannot find any automated pH measurement solution requiring the same 3 ml or so..

the system from Sirius Analytical looks nice
http://www.sirius-analytical.com/products/glph.shtml
but requires 20 ml of sample..

maybe I'm just out of subject and do not see something obvious but probably one of you knows an elegant and affordable solution..

thank you,
tim

I have a Mantech instrument for turbidity, pH and conductivity. I don't know if they do specific gravity but they are pretty adaptable modular systems. I use 50 mls of sample because to the requirements associated with turbidity but for pH 3 mls should be sufficient with test tubes in the autosampler.

I can send you my contact there if you like.