The HI221 and HI223 pH meters compare the characteristics of the pH electrode from one calibration to the next. The Calibration Check feature alerts the user if parameters are not suitable for an accurate calibration.
Thermoline has a digital centrifuge available. The model THC-16D has a maximum speed of 4000 rpm and a capacity of 16 x 10 mL tubes. A micro haematocrit centrifuge model THHC-24, which has a maximum speed of 12,000 rpm with a 24 tube rotor, is also available.
Hanna microprocessor-based portable turbidity meters provide laboratory-grade accuracy for field or laboratory use. HI93703-11 measures turbidity from 0 to 1000 FTU (NTU). For best accuracy, HI93703-11 measures from 0.00 to 50.00 FTU in steps of 1/100th of FTU. The meter meets ISO 7027 requirements. HI93703-11 is equipped with an infrared LED light source. The infrared LED has a long life and maintains constant emission for the life of the instrument. The wavelength peaks at 890 nm, which provides the required intensity of diffused light even in samples with low turbidity values, and also reduces the interference from colours.
Vented closures are now available for all Nalgene sterile disposable flasks. The vented closures, made of HDPE, feature a 0.2 µm hydrophobic PTFE membrane that provides sterile gas exchange for shaker and suspension cell culture.
The Mag Stir Genie from Scientific Industries is a digital programmable magnetic stirrer which is suitable for both low- and high-speed stirring. The ultra low and lightweight stirrer is easily programmed for either manual or automatic use according to preference.
Bacto Laboratories is the exclusive Australian agent for Dairei's range of refrigerators and low temperature freezers. The Dairei range of low and ultra low temperate freezers features a single compressor system using patented refrigerants. The advantage of this system is that it ensures high performance, reliability, low noise level, low heat dissipation, low energy consumption and a lower initial cost compared with conventional designs. Dairei products are also designed in such a way that any qualified refrigeration technician throughout the world can perform service without the need of any extra training.
In the past, the majority of pumps used in the chemical laboratory were water-jet pumps and oil-sealed rotary vane pumps. About 10 years ago, these systems were nearly completely replaced by systems using diaphragm pumps
The LA300 is a QC instrument designed for liquid dispersion work in the range 0.1 to 600 µm, and is suitable for pharmaceutical applications. It is compact, easy to use, and able to handle difficult sample types with ease.
The Nichipet Ex pipettor from Nichiryo is fully autoclavable and has enhanced UV resistance. The unit is lightweight and has fatigue-free operation with an enlarged figure rest. The convenient single hand locking lever makes for easy operation and the range of 8 sizes covers from 0.1 µL to 10 mL.