Um refratômetro ideal para o seu laboratório da Rudolph Research Analytical
Um refratômetro para cada aplicação laboratorial exigente para Medição do índice de refração. Rudolph offers the widest range of refractometers available in the market. Rudolph is a leading analytical laboratory instrument supplier. For instance, we manufacture precision quality, benchtop instrumentation. We serve the Pharmaceutical, Chemical, Petroleum, Petro-Chemical, Food, Beverage, Flavor, fragrance, and Alcohol industries. Therefore, all our instruments are designed to meet specific application requirements. Our instruments are designed to exceed your requirements. To meet many needs, we offer a range of models and numerous configurations. We are, of course, always pleased to advise you as you make a purchase decision for your laboratory.
O que um refratômetro mede?
- Medição do índice de refração
- Medição do BRIX
- Medir o índice de refração de sólidos
- Análise da concentração de fertilizante UAN
- Índice de refração para análise de tamanho de partículas em pó
Quais setores usam um refratômetro?
Cada setor tem seus próprios requisitos de aplicação, restrições ambientais e problemas de manuseio do operador que precisam ser enfrentados. Diferentes recursos, opções de manuseio de amostras e configurações são necessários para diferentes setores.
For more applications and industry uses, see the Rudolph Refractometer Selection Guide
Refratômetro: Assista a um vídeo sobre a linha de refratômetros automáticos da Rudolph Research
Problemas para visualizar este vídeo? Guia de seleção de refratômetro
Refratômetros da Rudolph Research Todos os recursos:
- Poço de amostragem raso e fácil de limpar. Um poço de amostragem limpo é essencial para medições precisas.
- Prismas de safira duráveis com fontes de luz de longa duração. Baixo custo de vida útil do instrumento.
- Garantia doméstica de 3 anos.
- Up to 3-year International Warranty.
- Garantia de suporte de 20 anos.
- Sales and local service located near your lab, anywhere in the world.
- Durabilidade para resistir aos ambientes mais adversos.
- Armazenamento de dados de refratômetros modernos
- Most importantly, decades of leading Analytical Instrument Design and Support.
Prisma de safira de alta durabilidade
All Rudolph Research J-Series refractometer instruments offer a sapphire prism. This provides for high mechanical and chemical durability. The sample well is made of acid-resistant 316 stainless steel with a Techtron sealing ring. The LED light source is designed to last for one million measurements. The prism does not scratch and can withstand the harshest environments.
Poço de amostra de refratômetro raso - Todos os modelos Rudolph J-Series
Refractometer measurement accuracy is only as reliable as the cleanliness of the sample well. Thus, hard-to-clean sample wells can lead to inaccuracies. This is due to residual sample left from a prior measurement. Rudolph set out to dramatically minimize this problem with a new approach to sample well design. Using higher-quality optics, Rudolph was able to design a sample well that is very shallow and smooth. This design allows for much easier cleaning and less surface area for contaminants to hide. The well cleans easily. The result is more accurate measurements due to significantly reduced sample cross-contamination.
Refratômetros - Com controle avançado de temperatura da amostra
Rudolph’s sample well has an electronic heating and cooling system. This greatly improves results and is simple to use. Moreover, sample temperatures must be accurately controlled within the sample well. This is true for most applications. Some applications require a highly controlled temperature. A temperature-controlled presser can be added to ensure even and accurate temperature stability. This provides stable temperature control from both the top and bottom. Therefore, a precisely controlled micro-environment is created. Thus, temperature-controlled samples from both the top and bottom allow for the most accurate measurement.
Refractometers – with dozens of application-specific options, over 10 Models
Rudolph understands your measurement applications. We provide the needed instruments and configurations to meet your requirements. For example, application requirements may be dictated by regulatory agencies, quality control demands, or sample handling concerns. Refractometers may also be utilized in conjunction with other instruments for multiple measurements. You may load one sample to receive multiple measurement results. Measurements can be used together with sample-specific tables or calculations. Sample delivery can also be automated. Automation can be with or without other instruments for a complete Laboratory Automation solution. Above all, Rudolph products will increase efficiency in your laboratory.
Refratômetro de laboratório de alta precisão - Modelo J457 Nosso modelo mais avançado. Ideal para laboratórios farmacêuticos, analíticos e químicos muito exigentes.
- O Smart Measure™ melhora os resultados com a medição ao vivo e o monitoramento de poços de carga de amostras.
- Controle eletrônico duplo de temperatura - Faixa de 10ºC a 110ºC ou 10ºC a 120ºC (opcional).
- Precisão: Índice de refração ±0,00002, BRIX ±0,01.
- Conformidade total com o 21 CFR Parte 11 e armazenamento de dados a bordo.
- Tela brilhante, de fácil leitura e resistente a produtos químicos, que se inclina para usuários mais altos ou mais baixos.
- A mais ampla faixa de medição de índice de refração de 1,26 a 1,72 e BRIX de 0 a 100.
- Além disso, armazenamento de dados - Compact Flash não removível de 32 GB.
- Totalmente conectável em rede.
- Sistema operacional Windows Embedded.
- The J457 can be configured in standard Benchtop, Wall Mount, or Factory configurations.
- Read more about the J457, Laboratory Refractometer
Automatic Refractometer Model J357 – Pharmaceutical, Chemical, Petroleum, Essential Oils, Fragrance, and Cosmetic Laboratories.
- Controle eletrônico duplo de temperatura - Faixa de 15ºC a 100ºC ou 10ºC a 120ºC (opcional).
- Precisão: ±0,00004 RI, ±0,03 BRIX.
- Prisma de safira de alta durabilidade.
- Armazenamento de dados: Armazenamento interno, salvamento em um pen drive ou upload via RS 232 para sistemas LIMS.
- Altamente capaz, com escalas quase ilimitadas armazenadas no instrumento.
- Mede praticamente qualquer amostra.
- Read more about the J357, Automatic Refractometer
Versatile Refractometer Model J257. High Accuracy, Wide Range for Polymer, Petroleum, Chemical, Pharmaceutical, and Essential Oil Laboratories.
- Ampla faixa de índice de refração de 1,26 a 1,72.
- Medidas além dos instrumentos com apenas uma faixa de índice de refração de alimentos de 1,33 a 1,53.
- Mede óleos essenciais aromáticos, solventes de fluorocarbono, além de todos os materiais conhecidos.
- In addition, a large, easy-to-read, 7.5cm x 10cm cold cathode fluorescent digital LCD Screen.
- To sum up, read more about the J257, Versatile Refractometer
Digital Refractometer J157 PLUS – High Accuracy for Food, Beverage, Water-Based Chemicals, and Sugar Industries.
- Mede até ±0,00002 RI / ±0,01 BRIX.
- More accurate and reproducible than 4-decimal-place wide-range chemical refractometers.
- Dual Electronic temperature control from the top as well as the bottom of the sample well.
- Há uma grande variedade de balanças padrão e personalizadas disponíveis.
- Todos os J157 PLUS e superiores operam em um sistema operacional Windows Embedded.
- In addition, Large, easy-to-read, 7.5cm x 10cm cold cathode fluorescent back-lit, digital LCD Screen.
- O J157-633 opera a 633 nm para os laboratórios de biotecnologia e bioengenharia do sistema OWLS.
- Read more about the J157, PLUS Digital Refractometer
Refratômetro de alta precisão J57 VT - Rudolph Research
- Ampla faixa de medição para o setor químico.
- Alta precisão.
- Most importantly, a rugged design as well as small footprint
- In addition, J57VT offers a wide Refractive Index (RI) measurement range from 1.26 – 1.70.
- Read more about the High Accuracy, J57VT Refractometer
Refratômetro de bancada modelo J47, quando o controle de qualidade é importante
- Refratômetros de laboratório de precisão com calibração rastreável.
- In addition, stores measurements electronically.
- Tabelas de correção de temperatura integradas para amostras de açúcar e à base de água.
- Read more about the J47, Benchtop Refractometer
Excelente para o controle de qualidade quando a qualidade é realmente importante no setor de produtos alimentícios e bebidas.
Years of user feedback and innovation have resulted in a wide range of instruments and options. Listening to users, Rudolph offers a refractometer model for every industry and application.
Buscando automatizar as medições de amostras - Laboratory Automation

All Rudolph Instruments carry our exclusive 20-year commitment to service your instrument.
Rudolph Research Analytical offers a comprehensive range of Preventive Maintenance as well as Service Programs. Above all, Rudolph has demonstrated a commitment to its customers by keeping installed instruments operational for many years. Not only for 20 years but in some cases for over 40 years. Therefore, a long-term commitment to keeping our instruments running reduces the cost of ownership. Over the life of a Rudolph Instrument, longevity reduces cost. This results in one of the lowest in the laboratory market segment. At this time, there is no other laboratory instrument manufacturer guaranteeing service and technical support for 20 years. View the entire 20 Service Guarantee.









