Teledyne API Model 200AU NOX Analyzer Instruction Manual, 02293, Rev. F

7.6.4.3 Example Calculation

Following is an example calculation that can be used to determine whether an existing GPT calibrator will meet the required conditions for a specific calibration. For this example, it is assumed that only the volume of the reaction chamber, VRC, and the concentration of the NO standard, [NO]STD, are known. All flow settings (FNO, FO, FT, and FD) will be calculated. In many uses, these flow settings are known and need only to be substituted in Equations 7-5 and 7-6 to verify the required conditions. Before doing any calculations, the URL and flow demand of the analyzer being calibrated must be known. For the M200AU:

Upper range limit = 0.5 ppm

Flow demand = 1000 cm3/min.

Volume of calibrator reaction chamber is determined by physical measurement:

VRC = 180 cm3

The concentration of the NO standard gas to be used is determined by reference against an NIST-SRM (Section 2.0.7, Q.A. Handbook):

[NO]STD = 50.5 ppm

1.Determine the total flow (FT) required at the output manifold using Equation 7-1:

FT = 1000 cm3/min (110/100) = 1100 cm3/min

Because low flows are difficult to control and measure, it is often advantageous to set a higher total flow than needed. In this example, we will let FT = 3300 cm3/min

2.Determine the NO conc, [NO]OUT, required at the output manifold, using Equation 7-2:

[NO]OUT = 0.5 ppm (90/100) = 0.45 ppm

3.Calculate the NO flow (FNO) required to generate [NO]OUT, using Equation 7-3:

F NO = 0.45 ppm × 3300 cm3 / min = 50.5 ppm

4. Calculate the required flow rate through ozone generator (FO) using Equation 7-4:

FO

=

50.5 ppm x 29.4 cm3 / min x 180 cm3

- 29.4 cm3 / min

 

 

2.75 ppm - min

 

=

97180 cm6 / min2 - 29.4 cm3 / min =

282 cm3 / min

7-15

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Teledyne 200AU instruction manual Example Calculation, FT = 1000 cm3/min 110/100 = 1100 cm3/min
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200AU specifications

The Teledyne 200AU is a cutting-edge analytical instrument designed primarily for trace and ultra-trace analysis of elements in various liquid samples. Renowned for its reliability and precision, this inductively coupled plasma mass spectrometer (ICP-MS) is widely utilized in environmental monitoring, food safety, clinical diagnostics, and geochemical research.

One of the distinguishing features of the Teledyne 200AU is its exceptional sensitivity, allowing for the detection of elements at concentrations as low as parts per trillion (ppt). This sensitivity is crucial for applications where even minute traces of contaminants can have significant implications. The instrument also boasts a wide dynamic range, accommodating high-concentration samples without compromising accuracy.

The Teledyne 200AU incorporates advanced technologies that enhance its analytical capabilities. At the core of its design is a robust ICP source, which ensures optimal ionization efficiency. The instrument also features a high-resolution quadrupole mass analyzer, which enables precise separation and identification of ions based on their mass-to-charge ratio. This feature is essential for distinguishing between isotopes and analyzing complex mixtures.

Another notable characteristic of the Teledyne 200AU is its user-friendly interface, which simplifies the operation and data management processes. The software is intuitive, offering sophisticated data processing algorithms that streamline analysis. Users can easily access real-time data visualization, facilitating timely decision-making based on analytical results.

The instrument is built with durability in mind, featuring a compact design that allows for easy integration into various laboratory environments. The Teledyne 200AU is also equipped with state-of-the-art safety features, including enhanced cooling systems and automated shutdown protocols to protect both the instrument and the user.

Moreover, the Teledyne 200AU supports a variety of sample introduction methods, including nebulization and laser ablation, providing flexibility to accommodate different types of samples and experimental needs. Its multi-element capability further enhances its versatility, allowing simultaneous detection of multiple elements in a single analysis.

In summary, the Teledyne 200AU stands out as a premier instrument in the field of mass spectrometry. Its combination of high sensitivity, advanced technology, user-friendly features, and robust design makes it an invaluable tool for scientists and researchers seeking precise elemental analysis across various disciplines.
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