Liquid-Liquid Extractor

I. Product Overview

The HD-QCQ6 fully automatic liquid-liquid extraction (LLE) instrument truly automates extraction, venting, cleaning and waste discharge. Composed of an extraction flask, a gas-liquid pump and a control unit, it adopts semi-closed internal air-flow circulation oscillation. The principle is to use air pressure to fully combine the water sample and extractant with violent collision to achieve extraction, replacing manual shaking, reducing labor intensity and improving extraction efficiency for more stable and reliable analytical results.

II. Application Fields

Suitable for water petroleum and other cases requiring liquid-liquid extraction in water-quality monitoring; also for automatic LLE of volatile phenol and anionic surfactants in water.

III. Executive Standards

HJ 637-2018 – Water quality – Determination of petroleum and animal/vegetable oils – Infrared spectrophotometry

HJ 970-2018 – Water quality – Determination of petroleum – Ultraviolet spectrophotometry

GB 7494-87 – Determination of anionic surfactants

HJ 503-2009 – Water quality – Determination of volatile phenol – 4-aminoantipyrine spectrophotometry

IV. Key Features

Smart microcomputer operation with a 7-inch color touchscreen; instrument parameters can be set independently.

Extracts 1 – 6 samples at once; six three-neck separatory-funnel extraction flasks with PTFE valves.

Each extraction flask has an independent PTFE air tube inserted to the bottom for extraction.

Semi-closed air-flow oscillation via a built-in air pump; extraction power is adjustable from weak to strong on the screen.

Waste gas generated during reaction is auto-vented with no manual venting, while avoiding the burst risk of fully closed flasks.

Special glass spray cleaning stoppers use constant-pressure scattered wide-angle cleaning to fully cover the funnel inner wall; dual channels draw detergent and pure water for selective rinsing of the flask.

Cleaned waste liquid is discharged through an independent pull-out waste trough made of organic-solvent-resistant PTFE.

Waste liquid can be collected manually or discharged automatically, suitable for different sample extractions.

One-key extraction oscillation, automatic settling and layering; each sample individually controllable.

Extraction and cleaning times can be set by timer.