Seiko Electronics Nano Technology Co., Ltd. (abbreviation: SIINT, President: Kawasaki Kenji, Head Office: Chiba City, Chiba Prefecture) is Seiko Electronics Co., Ltd. (Abbreviation: SII, President: Shinbo Yawen, Head Office: Chiba Prefecture A wholly-owned subsidiary of Chiba City. The company's latest product - a drive method using high-precision direct drive motors, and an ICP plasma emission spectrometer (ICP-OES or ICP-AES*1) "SPS3500DD Series" with high accuracy and high efficiency measurement will be officially launched on August 4th. start selling.

ICP-OES can correspond to analysis from ppm (parts per million) to ppb (billion parts per billion). Due to the sophisticated analysis of elements, it is used by many statutory regulations. Its applications are particularly in the field of analysis of rare metals and rare earth elements that are of great interest in recent years, and are also widely used in the analysis of composition of highly coexisting elements such as management of environmental controlled substances, electroplating, industrial materials, and steel in electronic instruments. And quality management.

The conventional SPS3500 is a scanning ICP-OES that performs precise analysis of various elements contained in a sample by rotating a grating to separate characteristic light emitted by elements. In the past, in order to drive the grating, a sine setting method using a combination of several components such as a ball screw and an oblique slider was used. Therefore, there is a limit to the accuracy and efficiency of the measurement.

The newly-developed "SPS3500DD Series" uses a newly developed direct drive motor to directly drive the grating, avoiding some useless mechanical actions and making it highly accurate. Efficient measurement becomes possible. Compared with the previous driving methods, the wavelength position accuracy has been improved by 5 times, qualitative analysis has been improved by about 6 times, and the measurement efficiency has been greatly improved.

In addition, because the "SPS3500DD Series" can drive high-resolution gratings at a larger angle, it can analyze the wavelength range up to 460nm, and there are many rare earth elements such as yttrium, ytterbium, ytterbium, etc. that can be analyzed using high-sensitivity analysis lines. Elements can also be measured with high resolution. In addition, with the direct drive motor method, the minimum drive wavelength unit is 2 pm, and the wide wavelength analysis of the full-wavelength energy spectrum is performed by one measurement. After the measurement is completed, the energy spectrum of the wide-area wavelength can be locally enlarged and observed. Especially in the elemental interference analysis of unknown samples, it is very effective.

[Key Features of SPS3500DD Series]

(1) Achieve high-precision analysis The drive of the grating does not require the use of auxiliary components such as sine setting and ball screws, and is directly driven by a direct drive motor. Therefore, high-precision analysis can be performed without being affected by the thermal expansion of various components.

(2) Fast Measurements Because gratings that can be quickly driven (more than 10 times as much as before) are spectrophotometrically, all-element qualitative measurement takes only about 1/6 of that of the past. At the same time can also reduce the sample consumption.

(3) Measurable wide-area wavelengths The high-resolution acquisition function of the arbitrarily set wide-range continuous energy spectrum is increased by using a high-resolution direct-drive motor. All-element, full-wavelength energy spectrum confirmation and qualitative judgment based on this information can be performed. It is also easy to set the measurement conditions for samples containing complex coexisting elements.

(4) High Resolution Measurement Due to the direct drive motor, the angle of the grating is not limited. The high-resolution raster (4320 filaments/mm) can be driven at a large angle, so high-resolution measurements can be performed at wavelengths around 450 nm that were previously impossible.

By using 4320/mm gratings, the world's top level resolution of 0.0045nm is achieved, and samples with high coexistence elements such as metals can be accurately measured.

(5) The qualitative analysis function can be enriched by qualitative analysis methods such as rapid qualitative analysis and high-precision qualitative analysis. According to the sample content and purpose can be a wide range of correspondence.

(6) Compact design The same as the conventional models, the vertical configuration of the splitter is adopted, and the high-frequency power supply and circulating cooling water device are integrated in the compact design of the main unit.