Automatic Analysis

Sipper Unit

The following accessories are used to continuously supply samples to a sample compartment for measurement. The sipper unit automatically supplies sample solutions to cells using a stepping motor-driven peristaltic pump. When this unit and the auto-sample chamber are used together, up to 100 samples can be measured automatically and continuously.

  • For UVmini, UV-1900i/2600i/2700i and 3600i Plus series

*) This unit cannot be used for strong acids, strong alkalis or ester solutions since the tubes of the stepping motor-driven peristaltic pump are not chemical-resistant. Buy the separate solenoid valve unit (fluorine resin treated) and SWA-2 sample waste unit.

Standard Type

160L: standard type(minimum require

Two types of syringe sippers are available: the normal-temperature type (N) and the constant-temperature water-circulation type (CN). The sipper unit uses a syringe pump system. Liquid-contact surfaces are made of fluorine resin, glass or fused silica, which means that they are very resistant to chemicals and easy to maintain, allowing measurement of almost any type of sample. They also feature an extremely high sipping volume repeatability (repeat precision: &plusmin;0.03 mL). The flow cell is available separately. Choose from the recommended flow cells in the table below.

  • For UVmini, UV-1900i/2600i/2700i and 3600i Plus series

*) When used on the UVmini series, the sample compartment unit is required. Also, on the UVmini series, the square flow-thru (super-micro) cell with 2 mm dia. light-thru section cannot be used.

Recommended Flow Cells
Type Optical Path Length Aperture Dimensions Standard Required Sample Volume
Square flow cell (super-micro) 10mm φ2mm 0.9mL
Square flow cell (micro) 10mm φ3mm 1.0mL
Square flow cell (semi-micro) 10mm 11mm H × 3.5mm W 5.0mL
ASC-5 Auto Sample Changer

Use this accessory with a sipper unit or syringe
sipper to configure an automated multi-sample
spectrophotometry system.

  • For UVmini, UV-1900i/2600i/2700i and 3600i Plus series

*) A commercially available test tube stand with a 220 ´ 220 mm or smaller footprint can be used.

*) When used on the UV-1800, the ASC USB adapter is required.

SWA-2 Sample Waste Unit

This handy unit is used instead of an aspirator.

  • For UVmini, UV-1900i/2600i/2700i and 3600i Plus series

*) When an aspirator is used, use of this unit is recommended since fluctuation in the water pressure causes the sample suction volume to fluctuate.

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