KR810000624B1 - Method of sulfur analysis by x-ray spectro photometer - Google Patents

Abstract

Sulfur component in fuel oil can be simply analized by X-ray spectro photometer. Standard fuel oil by sulfur conc. and testing oil is homogeneiously precipitated on filter paper and dried in oven at 105±5≰C for 30mins. So the intensity of precipitated filter paper is compared with that of standard material to give sulfur content.

Description

Sulfur analysis method by fluorescence X-ray spectroscopy

The present invention is a method for rapidly quantitatively analyzing sulfur components in fuel oil by fluorescent X-ray spectroscopy.

In this way, polypropylene and analytical methods using X-Ray Sulfur Meter and On-line Sulfur Meter have been used in oil refineries for analyzing sulfur components in fuel oils for a long time. A method of quantitatively analyzing sulfur content in fuel oil by fluorescent X-ray spectroscopy using a liquid sample holder using a poly propylene foil and a mylar foil and a special screen It has been.

However, the method of quantitative analysis of sulfur components by liquid sample holder using X-ray sulfur meta online sulfur meta and special screens is not only expensive to manufacture and purchase but also difficult to purchase accessory materials and requires a long time for analysis. Have

In order to solve the above problems, instead of a special screen necessary for analysis, it is easy to purchase and inexpensive filter papers, and it is possible to obtain the content of sulfur components quickly and accurately by giving the most suitable analysis conditions thereto. When explaining the present invention in detail as follows. The unknown sample (fuel oil) and sulfur concentration standard sample to be analyzed are uniformly deposited on the filter paper under the same conditions, and the deposited filter paper is placed in a dry oven at 105 ± 5 ° C and dried for 30 minutes. After cutting, the filter paper is cut to fit the sample holder of the fluorescent X-ray spectrometer and the intensity of the filter paper on which the standard sample is deposited is analyzed by the fluorescent X-ray spectrometer to prepare a calibration curve according to the result. At this time, the strength of the filter paper in which the unknown sample is deposited can be analyzed by fluorescence X-ray spectroscopy, and the sulfur content can be obtained by comparing with the calibration curve prepared by the standard sample.

As such, the most suitable analytical conditions for analyzing the sulfur content of fuel oil by replacing the special screen as filter papers are shown in Table 1.

TABLE 1

Trget Rh (or Cr)

Spectrum S-

Voltage 20K _V (can be changed within the range of use)

Current 10mA (＂)

Detector F-PC

Crystal Ge (or ADP, Nacl, PET, RAP)

Path vacuum

Measuring Time 40Sec (can be changed within the settable range)

As described above, the present invention is to analyze sulfur components in fuel oil by using a fluorescent X-ray spectrometer, and it is possible to obtain materials necessary for analysis cheaply and easily as compared to the conventional method using a special screen, which is expensive. In addition, it is a method to rapidly analyze fuel-mediated sulfur content by fluorescence X-ray spectroscopy by providing samples necessary for sulfur component analysis by depositing filter papers which can reduce the time required for analysis and obtain good analysis results.

Claims (1)

A method of analyzing sulfur content by fluorescence X-ray spectroscopy with a sample of fuel oil deposited uniformly on a filter paper and then dried.