Shimadzu Scientific Instruments has introduced the TOC-L series of analysers for total organic carbon (TOC) testing in aqueous samples.
With a wide sample range from 4ug/L to 30,000mg/L, the TOC-L is suitable for analysing ultra-pure to highly contaminated samples of wastewater, brine water, seawater, drinking water and pharmaceutical water.
Comprising four models, including PC-controlled and standalone versions, the TOC-L uses Shimadzu's 680C combustion catalytic oxidation method to efficiently analyse all organic compounds.
It features automatic sample acidification and sparging, as well as an automatic dilution function that reduces sample salinity, acidity and alkalinity.
This extends the use of catalysts and combustion tubes.
The TOC-L series features variable syringe sizes when the sample volume is limited.
High-precision mass flow controllers ensure uninterrupted carrier gas for accurate analysis.
A zero-maintenance Peltier cooler used for maximum water vapour removal ensures accurate analysis.
In addition, an on-board air purifier may eliminate the need for high-purity air during testing.
The optional salt kits permit 12 times more salt to be analysed before maintenance is required.
The ASI-L autosampler can use three different vial sizes for various applications, while the smaller OCT-L autosampler can use any vial size for up to eight or sixteen samples.
TOC-L models can accept particulates up to 500microns or 800microns with the optional particulate kit.
For larger particles, solids, soils and sludge, the SSM-5000 is said to be a suitable solution.
The TNM-L can be added for simultaneous TOC and total nitrogen analyses without increasing the size of the footprint.
Additional hardware features include a colour LCD monitor and USB communications for computer, printer and data storage.
The systems use 36 per cent less energy than previous models and the TOC-L's footprint has been reduced by 20 per cent to save laboratory space.
