Africa Accessories

Africa Accessories

Every Africa System is made up of a number of different modules and accessories. A list of all available Africa flow chemistry accessories are listed below.

Microreactor

The etched glass chip reactors are the flow equivalent of a round bottomed flask. They come with either 2 or 3 reagent inputs and in 3 sizes – 62.5µl, 250µl and 1000µl. The chip reactors clip into the Heater/Cooler module for temperature control and can be heated up to 250°C and cooled down to 0°C. To flow the reagents in to the micro reactor (and the products out), PTFE pipes are connected using the chip header.

The output of one reactor can be connected to the input of another to enable multi-step synthesis or reaction quenching in flow.

Tube Reactor

The tube reactor uses PTFE or Stainless Steel tube rather than etched glass and has volumes of either 4ml or 16ml. This enables greater throughput of product e.g. 100s of grams overnight. The reactor sits on a Tube Reactor Heater. The reaction mixture is cooled by the “heat sink” before it exits the system.

Chip Header

The chip header holds the input and output pipes and connects them to the chip reactor. The header is secured to the chip by the two knurled thumb screws.

Sample Loops

The Sample Loops fit in the Reagent Store and allow reagents (or solvents) to be added in-line, rather than having to be pumped through the syringes. In this mode, “buffer solvents” from the Reagent Pumps push the reagents/solvents out of the Sample Loops and into the chips. Sample Loops are available in either 1ml, 5ml or 10ml. All the wetted parts are PTFE tube.

Yellow Syringes

The Yellow Syringes fit onto the Reagent Pump and allow flow rates from 2.5µl/min to 250µl/min in 0.5µl/min steps.

Green Syringes

The Green Syringes fit onto the Reagent Pump and allow flow rates from 12.5µl/min to 1250µl/min in 2.5µl/min steps.

Blue Syringes

The Blue Syringes fit onto the Reagent Pump and allow flow rates from 25µl/min to 2500µl/min in 5.0µl/min steps.

Synthesis Consumables Pack

The Synthesis Consumables Pack contains:

• 10 × Gripper for 1/16” OD tubing
• 8 × Large head fitting for 1/16” OD tubing
• 4 × Small head fitting for 1/16” OD tubing
• 10m PTFE TUBE – 1/16 OD 0.5mm ID
• 5m PTFE TUBE – 1/16 OD 0.5mm ID Blue/Nat
• 5m PTFE TUBE – 1/16 OD 0.5mm ID Red/Nat
• 2 × Stanley Disposable Scalpel
• 20 × 5ml Disposable Syringe
• 20 × 10ml Disposable Syringe
• 1 × Pipe Cutter 1/16 to 1/8
• 16 × Square section ring 1.35×4.0x1.8
• 4 × Luer fitting for Reagent Store

Chip Inlet Blocker

A chip inlet blocker allows a 3 input chip to be used with only 1 or 2 inputs and a 2 input chip to be used with only 1 input.

Chip Header Seals

The chip header seal forms the interface between the PTFE pipe and the glass chip. Made from “FFKM” it has the similar chemical resistance to PTFE but is “rubberised” so can form a seal to 30bar (450psi). These are supplied in a pack of 10.

PTFE pipe

This 5m length, 1.6mm outside diameter, 0.5mm internal diameter PTFE pipe can be used to replace any pipe in the synthesis system.

¼ – 28 Gripper fitting (Large Head)

This ¼ – 28 Gripper fitting (Large Head) is used for the majority of AFRICA fittings.

¼ – 28 Gripper Fitting (Compact Head)

This smaller head ¼ – 28 gripper fitting is designed for areas with restricted acess such as reagent pump valves and pressurisation module bottles.

Pipe Gripper

Pk 10. To fit 1.6mm OD pipe and 1/4 – 28 fittings.