UV Vis automation

UV/VIS Autosampler

Improving Speed, Consistency and Compliance

An autosampler improves speed and brings consistency and compliance to your spectroscopic workflows. Choose between the Flex, Pro, and Max UV/VIS InMotion™ autosampler bases and combine them with the InMotion sample rack that fits your throughput and sample size needs. Completed with a UV/VIS sample kit your system becomes the perfect fit for your laboratory.

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Step 1: Select Your Sample Volume

The first step in configuring your UV/VIS autosampler system is to define the sample size you want to automate.

Step 2: Select Number of Samples

Depending on your selected sample volume, you can choose the desired number of samples to automate.

Step 3: Configure Your System

As a result, you will see the available combination of base kit and sample rack. Now, you can decide between two automation types, flow cell or immersion probe, and browse the available accessories.
Contact us for more information, a customized system or to receive your quote! 

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FAQs

Why automate spectroscopic UV/Vis workflows?

Automated spectroscopy is more than just adding a sample pump to fill cuvettes to save time. While the main focus of automation is on creating ease around often-repeated steps and routine analytical tasks, automation can also significantly improve adherence to the UV/Vis analytical workflow. Additionally, you can:

  • Eliminate transcription errors
  • Reduce measurement uncertainty
  • Enhance repeatability
  • And improve data security
     

All of these improvements lead to results that are more highly reliable and trustworthy while also helping to reduce rework and cost-per-analysis.

Which UV/Vis applications can be automated with an autosampler?

Fixed wavelength measurements
Fixed wavelength measurements and full scans of UV/Vis spectra are the simplest UV/Vis applications. These can generally be automated with all types of automated sampling.

Quantitative determination
InMotion™ autosamplers are especially suited to quantitative applications that require the determination of a calibration curve before sample analysis, as they allow the measurement of calibration standards and samples in one run.

Temperature control
Applications that require automation of a constant temperature control use either a CuvetteChanger, or an InMotion™ autosampler, depending on the number of samples. If an InMotion™ autosampler is used, it is advisable to use immersion probes instead of flow cells. Samples are thermostated on the autosampler rack with measurements done directly in the beakers. With flow cells, samples must be transferred via noninsulated tubes, causing unwanted temperature fluctuations.

Which sample amount can be automated with an UV/Vis autosampler?

When working with an autosampler, the sample amount available should exceed 10 mL. When working with pumps and autosamplers, more sample is required than when working with cuvettes (e.g., CuvetteChanger). A sample is transferred via tubes to the flow cell, and, therefore tube volume must be filled as well. Additionally, the flow cell must be flushed with the new sample to push out the previous one. If only a small volume of sample is available for analysis (less than 10 mL), then a CuvetteChanger might be the better automation option.

Can viscous samples be automated by an UV/Vis autosampler?

Slightly viscous samples (approximately 20–50 mPas) are not a problem for peristaltic pumps, but as viscosity increases, samples become more difficult to transfer. At the same time, the cleaning and rinsing of flow cells becomes increasingly difficult. This may make CuvetteChanger a better option.

Can hazardous samples be automated by an UV/Vis autosampler?

When samples are hazardous or otherwise of safety concern to the operator, sipper pumps and autosamplers are ideal for minimizing operator exposure, as they require fewer interactions. When working with sipper pumps, the operator only needs to insert the aspiration tube in the sample and the pump will do the rest. The risk of sample spillage or accidental contact is reduced significantly. The operator only needs to handle the samples once when loading the rack. After that, the system will take care of transferring, measuring and disposing of samples. Additionally, thanks to a small footprint, InMotion autosamplers can be placed in fume hoods to protect operators further.

Which samples concentrations can be automated by an UV/Vis autosampler?

Sipper pumps and InMotion™ autosamplers allow optical path lengths from 1 to 50 mm. CuvetteChangers allow the use of optical path lengths of 10 mm or shorter, provided the outer dimensions are 12.5 by 12.5 mm.