DuMaster D-480Unattended and flexible protein determination

The DuMaster D-480 enables unattended and flexible determination of nitrogen or protein according to the Dumas combustion method. The short analysis time of approximately 4 minutes per sample, coupled with the built-in autosampler accommodating up to 120 sam-ples, makes this analyzer perfectly suitable for high throughput without supervision.

Safe and convenient Exchange catalysts safely and add or remove samples at any time

Unattended and fastRun up to 120 samples without interaction or supervision

Cost effective Reduce your costs per analysis

Safe and convenient Exchange catalysts safely and add or remove samples at any time

DuMaster D-480Key features and advantages

«The DuMaster D-480 delivers the accuracy required whilst being easy to use. This combined with the low unit cost per sample fulfills our commercial needs.»Jon Griffin, Public Analyst, Kent Scientific Services, UK

Random access

Choose between 60 and 120 positions autosampler plate with random access at any time

Availability of carrier gas

No CO2 trap needed thanks to the use of lower priced carbon dioxide as carrier gas instead of helium

Precise detection

Use of reliable and stable thermal conductivity detector integrated in a space-saving instrument

Minimized maintenance

Convenient slide out furnace for an easy exchange of all tubes

Sample preparation tools

Specific equipment for a tight packaging of solid and liquid samples

Easy to use software

Create a complete sample sequence and test the system using the integrated leak test

Thanks to the new Regainer-Reductor technology, the absorption capacity of an excess of oxygen, dosed during the combustion process, is radically increased.

The regainer 1 in the post combustion tube binds the oxygen and can be refilled easily without changing the complete tube filling.

In the pre-filled reductor tube 2 the nitric oxides are reduced to nitrogen and the reduction agent is automatically regenerated. Use this tube for up to 2’000 determinations.

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www.buchi.com/dumaster Quality in your hands

D-480:

Unattended and fast

∙ Rapid analysis times of approximately 4 minutes per sample ∙ High sample throughput due to fast and automatic autosampler ∙ Unattended overnight operation of up to 300 samples per day ∙ Continuous operation thanks to stable calibration over months

Cost effective

∙ Low costs per sample thanks to: ∙ high degree of automation ∙ low-priced carbon dioxide as carrier gas as opposed to helium ∙ up to 95% savings of oxygen due to automated oxygen control

∙ Maximized up times as result of innovative post combustion and Regainer-Reductor technology ∙ Highest productivity with 2,000 analyses per one pre-filled reduction tube

Safe and convenient

∙ Maximum safety: no contact with harmful chemicals or risk of burns ∙ Large sample volume (up to 1 g or 1 mL) analysis thanks to efficient multi-step gas drying ∙ Random access of samples at any time (no batch processing required) ∙ Remote assistance and troubleshooting over the internet

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