An apparatus for testing a powder sample with a fluorescence spectrometer

Abstract

The utility model discloses a device for fluorescent spectrometer test powder sample, including angle adjustable sample support base, angle adjustable sample support base is equipped with with angle scale's base tray and passes through with angle scale's base tray physical center's pivot, pivot can rotate in with angle scale's base tray, pivot is consolidated with the sample cell support of hollow formula with base tray, and the sample cell support of hollow formula with base tray is equipped with the slot of being able to insert sample cell, and sample cell is inserted from the slot and is opposite base tray, and pivot rotation drives the sample cell support of hollow formula with base tray. The device angle adjustable, convenient to use, low in cost, can avoid the pollution of sample bin when replacing the sample of loading in the test, can be convenient and fast rotation angle and respond to different test mode, and the device is not only suitable for the test of fluorescent test sample, but also suitable for other optical test demand.

Description

Technical Field

[0001] This utility model relates to experimental equipment, specifically a device for testing powder samples using a fluorescence spectrometer. Background Technology

[0002] Currently, sample holders for solid-state luminescence testing in fluorescence spectrometers are mostly made using a black alumina process. The sample cell is typically placed on this black alumina holder for testing, which makes sample spillage and contamination of the sample chamber easy. This type of holder also tends to absorb and scatter the excitation and emission light from the fluorescence spectrometer, making it difficult to obtain high signal-to-noise ratio data. This is especially true for weakly luminescent samples, where effective spectral data is often difficult to obtain. Fluorescence spectrometers acquire transient and steady-state spectral signals during testing, requiring the use of different light sources to excite the sample from different angles, necessitating real-time adjustment of the sample angle. Current sample cell holders lack powder collection mechanisms, making sample spillage during angle rotation and sample changes a common problem, easily contaminating the instrument. This is particularly true for high-intensity luminescent substances; spillage can severely affect test results. Contaminated sample chambers are also difficult to clean thoroughly, as they contain complex optical lenses, making repairs difficult and replacement parts expensive. While some sample holders are now rotatable, there are still no good solutions for powder spillage, contamination, and background interference.

[0003] Fluorescence spectrometers are the primary means of studying the luminescence properties of samples. Fluorescence phenomena are widely used in research in many fields such as fluorescent anti-counterfeiting, life science analysis, LED light sources, quantum dot displays, and lighting. Reducing the impact of powder sample testing and sample changing processes is of great significance for improving test accuracy. However, there is currently a lack of adjustable-angle, low-background, and pollution-resistant powder sample cell holders for fluorescence spectrometers to improve this situation. Utility Model Content

[0004] The purpose of this invention is to provide an angle-adjustable, low-background, anti-contamination powder sample cell holder for fluorescence spectrometers, addressing the shortcomings of existing technologies. This device is angle-adjustable, easy to use, low-cost, and avoids contamination of the sample chamber when changing samples during testing. It allows for convenient and rapid angle rotation to accommodate different testing modes. This device is suitable not only for testing fluorescence samples but also for other optical testing needs.

[0005] The technical solution for realizing the bracket of this utility model is: An apparatus for testing powder samples using a fluorescence spectrometer, differing from existing technologies, includes an angle-adjustable sample holder base. The angle-adjustable sample holder base has a base plate with angle markings and a rotating shaft passing through the physical center of the base plate. The rotating shaft can rotate within the base plate with angle markings. The rotating shaft is fixed to a hollow sample cell holder with a base tray. The hollow sample cell holder with a base tray has a slot for inserting a sample cell. The sample cell is inserted through the slot, facing the base tray. Rotation of the rotating shaft drives the hollow sample cell holder with a base tray.

[0006] The shaft can rotate 360° within a base plate with angular markings.

[0007] The working process of this device is as follows: the powder sample is loaded into the sample cell, the sample cell is inserted into the slot and contacts the base tray, the rotating shaft is rotated, and the rotating shaft drives the hollow sample cell support with the base tray, thereby adjusting to the required sample testing angle.

[0008] This device is angle-adjustable, easy to use, low in cost, and can avoid contamination of the sample chamber when changing loaded samples during testing. It can easily and quickly rotate the angle to cope with different testing modes. This device is not only suitable for testing fluorescent test samples, but also for other optical testing needs. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of an embodiment; Figure 2 This example compares the test results of the same sample using this device and an existing sample cell holder.

[0010] In the figure, 1. Angle-adjustable sample holder base; 2. Base plate with angle scale; 3. Rotary shaft; 4. Sample cell holder; 5. Sample cell; 6. Slot; 7. Base tray. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this is not intended to limit the present invention. Example

[0012] Reference Figure 1An apparatus for testing powder samples using a fluorescence spectrometer includes an angle-adjustable sample holder base 1. The angle-adjustable sample holder base 1 is provided with a base disk 2 with angle scale and a rotating shaft 3 passing through the physical center of the base disk 2 with angle scale. The rotating shaft 3 can rotate in the base disk 2 with angle scale. The rotating shaft 3 is fixed to a hollow sample cell holder 4 with a base tray 7. The hollow sample cell holder 4 with a base tray is provided with a slot 6 for inserting a sample cell 5. The sample cell 5 is inserted from the slot 6 and faces the base tray 7. When the rotating shaft 3 rotates, it drives the hollow sample cell holder 4 with a base tray.

[0013] The rotating shaft 3 can rotate 360° in the base plate 2 with angle scale.

[0014] In this example, during the test: The first step is to fix the angle-adjustable sample holder base 1 and the hollow sample cell holder 4 with a base tray through the rotating shaft 3, and then install it into the sample chamber of the fluorescence spectrometer. The second step is to load the powder sample to be tested into sample cell 5; The third step is to insert the sample cell 5 into the slot 6 of the hollowed-out bracket; The fourth step is to select the hollow bracket 4 to rotate the sample to the required testing angle; The fifth step is to remove the sample. If any sample is spilled, clean the base tray 7. After cleaning the bracket, you can proceed to the next sample test. To further investigate whether the adjustable-angle, low-background, anti-contamination fluorescence spectrometer powder sample cell support device can effectively prevent sample spillage and contamination, experiments were conducted on powder samples using the aforementioned device to examine the performance of this support compared to the original support in terms of spectral testing and contamination prevention.

[0015] like Figure 2 As shown in the figure, it can be seen that the technical solution in this example can effectively reduce the impact of the background on the test results.

Claims

1. An apparatus for testing powder samples using a fluorescence spectrometer, characterized in that, The sample holder includes an angle-adjustable sample holder base, which has a base plate with angle markings and a pivot that passes through the physical center of the base plate with angle markings. The pivot can rotate in the base plate with angle markings. The pivot is fixed to a hollow sample cell holder with a base tray. The hollow sample cell holder with a base tray has a slot for inserting a sample cell. The sample cell is inserted into the slot and faces the base tray. When the pivot rotates, it drives the hollow sample cell holder with a base tray.

2. The apparatus for testing powder samples using a fluorescence spectrometer according to claim 1, characterized in that, The shaft can rotate 360° within a base plate with angular markings.

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