We purchased two J257 Automatic Refractometers …Those instruments not only supply critical data in the creation and optimization of products, but they often do so as many as seven days a week. The ability to make fast, accurate and reliable determinations of refractive index in just a matter of seconds allows us to maximize the quality of our products.
I would highly recommend the Rudolph J57HA Refractometer over any other brand of refractometer that I have used or tested throughout my many years working in the sugar industry…
…I have been extremely pleased with the Autopol (Polarimeter) instruments over the years…As expected, our refurbished Autopol II has been reliable and easy to use. I should add that your personal visit to help us set up the instrument was very helpful and illustrated to me that Rudolph Research stands behind its products.
Overall, the instrument has been trouble-free and easy to use. Combined with the excellent costumer service provided to me by Rudolph Research on every occasion I have contacted them, I highly recommend the instrument…
We had a (Other Brand) before too, and have changed to Rudolph Autopol IV for about a year. We are pleased with the Rudolph Autopol IV ….
…we have been extremely pleased with the performance of this instrument, in terms of sensitivity and reproducibility. The instrument is very robust, and the stainless steel jacketed cells are truly a bonus, unlike the old glass cells, these are very user friendly and forgiving, especially when handled by clumsy graduate students!
We like the Rudolph polarimeters—they are very robust…our School of Pharmacy has fully converted to Rudolph, based on specifications, price, and support.
…after evaluating various polarimeters from well-known manufacturers, we ended buying one from Rudolph Research…This letter is to confirm that we are very pleased doing business with your company.
I have used numerous polarimeters and this is by far the best. We have had it for 1 ½ years and have had zero problems; the original lamp is still in the instrument. I recommend it over other instruments…we have had no problems. It is one piece of equipment that you never worry about.”
Overall, the instrument has been trouble free, exceptionally stable and accurate, as well as easy to use…I highly recommend the instrument.
The Autopol V (Polarimeter) has performed very well throughout the entire five years…. We are very happy with our Autopol and would recommend one to any lab considering a purchase of an automated polarimeter…