Refractometer Calibration, 2 point method, Rudolph Research J157 – Video Transcript Refractometer Calibration resource – for laboratory refractometer users utilizing a Rudolph Research Automatic Refractometer. Hi, I am John Ciccarella, Service manager of the most innovative line of refractometer instruments made today from Rudolph Research Analytical. John Ciccarella , Rudolph Research, Service Manager with a
Measuring Alcohol Density with a Density Meter requires specific sample preparation procedures for accurate results. Procedures for sample preparation for measuring alcohol density with a Rudolph Research DDM2911 Density Meter Application Report Alcoholic Beverage Sample preparation: In general, there are two basic types of alcoholic beverage classifications, each with a different procedure required prior to
Refractometer Temperature Correction & Control Peter Marriott – Refractometer Product Manager Rudolph Research Analytical Also see video: Refractometer, Temperature Correction & Control with a Rudolph J457 We are going to look at the effects of changing temperature on refractive index measurement and if Temperature Correction can compensate for temperature variances or if actual temperature control
Digital Refractometers – Universal Concentration Meters By Angelo DePalma, Ph.D – Partial Reprint – Originally Published April 6th, 2011, for original see Lab Manager; – Refractometers are instruments that quantify and identify chemicals and materials based on their refractive index (RI). A unique property related to the speed of light as it passes through a substance, RI (Refractive Index)
We wish to take this opportunity to express our deep sense of appreciation for your technical assistance over the last twenty years…
From the moment of our preliminary discussion of purchase until the present, you and your staff have been most helpful and courteous in all situations…
This was installed very efficiently … and it is working to our satisfaction…
I would highly recommend the DDM 2910 Automatic Density Meter and Rudolph Research Analytical to anyone…
The density meter is working out great! We just ran about 16 lots on it and it is so much easier/faster than the pycnometer…
Since the system was installed in September, we have analyzed 3000 samples and have not had a single problem…
I would definitely recommend your instrumentation to anyone I know because it is excellent instrumentation and awesome technical support always.
Please be informed that we are using the J357 Refractometer and the Autopol V since 2006, and that we are pleased about their accurate and stable measurement…
The lab technicians like it for its ease of use, and the lab supervisors (myself included) like it for its reproducibility from one technician to the next…
Based on very satisfying results, we decided this year to replace also the backup Abbe style instrument by a second Rudolph refractometer. We are very pleased with your instruments; you can consider us as reference customer.
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!
