Fiber Optic Probes allow you to measure your sample in its container without requiring transfer of the sample to a cuvette and insertion of the cuvette into the sample compartment of the spectrophotometer.  

Advantages of the Evolution One/One Plus Integrated Fiber Optics Module

• Reduced optical component count reduces signal loss at optical surfaces compared to passive fiber optic coupler designs
• Integrated detector maximizes light capture, improving signal strength
• Maximizing the energy throughput of the system (the signal) delivers improved dynamic range and signal-to-noise ratio, giving you more flexibility to measure a wide range of concentration and more stable readings

Advantages of fiber optic probe measurements

• Increase sample throughput in your laboratory
• Make at-line QC measurements more easily
• Reduce handling steps with hazardous samples
• Measure small volumes in PCR tubes with the Fiber Optic Microprobe
• Measure inside an inert-atmosphere box without putting the spectrophotometer inside the box

Limitations when working with Fiber Optic Probes

• Light losses in the probe coupler, fibers and the probe itself reduce the dynamic range of the instrument compared to measurements in cuvettes
• Although probes are designed to minimize the impact of room light, data recorded with fiber-optic probes will include a level of noise from room light that is not present when measuring in a closed, dark sample compartment.  An increased level of noise from measurement to measurement is to be expected, but can be managed by use of longer integration times for each data point.