As laboratory equipment manufacturers, both the Kalstein YR04950-1 and the Elementar Vario TOC cube use the high-temperature catalytic combustion method for measurements. Both reach extremely high temperatures, but the Vario TOC cube can reach up to 1,200 ° C, exceeding the capacity of the Kalstein, which reaches up to 1,000 ° C. This feature is crucial for the degradation of the toughest samples, highlighting the advantage of Elementar in this respect. https://www.kalstein.nl/product/total-organic-carbon-analyzer-yr04950-1/
The measurement range is essential when choosing to buy laboratory equipment. The Kalstein YR04950-1 has a measurement range of 0-50,000mg / L. On the other hand, the Elementar Vario TOC cube has a wider range from 6 μg / L to 60,000 mg / L, providing greater versatility in measurement. However, the purchase decision is related to the measurement range required in the laboratory and the cost-benefit of each equipment.
Equipment Features
Both machines employ non-dispersive infrared detection (NDIR). This technique is effective and accurate in determining the components of the sample. However, the detection limit for the Vario TOC cube is much lower with 6 μg / L compared to the YR04950-1, which ranges from 20 to 100 μg / L, which can be an advantage or disadvantage depending on laboratory needs.
Both machines have an auto-fill sample option. This creates convenience and accuracy in the extraction and application of samples. The advantage in this aspect resides in the Vario TOC cube as it can process solid samples in addition to liquids, while the Kalstein YR04950-1 only processes liquid samples.
Both machines are computer-controlled, optimizing the operation process and allowing greater precision and control in sample handling. In terms of support and compliance with regulations, both offer Qualified Installation (IQ), Qualified Operation (OQ), and Qualified Performance (PQ) documentation, in addition to complying with the 21 CFR part 11 standard.
Advantages and Disadvantages
The Kalstein YR04950-1 offers two types of catalysts that can adapt to different types of samples, whether normal or high salt content like seawater. Furthermore, it performs auto-dilution, gas auto-purge, and acid auto-addition functions, offering versatility and ease of use.
The Elementar Vario TOC cube, on the other hand, can analyze a larger number of elements, including Total Available Nitrogen (TN) and can adapt to solid samples in addition to liquids.
In conclusion, both machines offer significant advantages, but the purchase decision depends on the specific needs of the laboratory. The laboratory demands will dictate which manufacturer offers the most suitable equipment in terms of price, ease of use, technical needs, and precision.