A porous sample holder for nano-ion probes suitable for geological sample analysis
By designing a porous square titanium alloy sample holder, the problem of insufficient capacity of the nano-ion probe sample holder was solved, enabling high-throughput geological sample analysis and improving analytical efficiency and instrument applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INSTITUTE OF GEOLOGY AND GEOPHYSICS CHINESE ACADEMY OF SCIENCES
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-02
AI Technical Summary
Existing nano-ion probe sample holders have limited capacity, simple structure, and heavy materials, making it difficult to meet the needs of batch and high-throughput analysis of geological samples.
The titanium alloy sample holder features a porous square structure with multiple sample mounting holes and a limiting structure. Mounting holes are provided at the edges or corners for easy fixation, making it suitable for nano-ion probe analysis instruments.
It significantly increases sample capacity, meets the needs of high-throughput multi-sample parallel analysis, reduces weight while ensuring mechanical strength and corrosion resistance, and improves analytical efficiency and laboratory work efficiency.
Smart Images
Figure CN224317568U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sample support technology for micro-area analysis and mass spectrometry instruments, and in particular to a porous sample holder for nano-ion probes suitable for high-throughput analysis of geological samples. Background Technology
[0002] NanoSIMS (Nano-Ion Probes) are high-spatial-resolution, high-sensitivity secondary ion mass spectrometers widely used in micro-area elemental and isotope analysis in geology, materials science, and biology. Existing NanoSIMS sample holders are mostly circular, typically only able to hold one 1-inch disc, two 0.5-inch discs, or two 10-millimeter discs simultaneously, limiting sample capacity and failing to meet the practical needs of high-throughput, batch analysis of geological samples. With the increasing demands for geological sample analysis, higher requirements are being placed on the load-bearing capacity, structural design, and material properties of the sample holder. Currently, commonly used sample holder materials are mostly stainless steel or aluminum alloy, which suffer from drawbacks such as heavy weight and limited strength, restricting the instrument's efficient operation and batch testing capabilities. Therefore, developing a porous sample holder with optimized structure, large sample capacity, light weight, and high strength is of great significance for improving the analytical efficiency and applicability of nano-Ion Probes. Summary of the Invention
[0003] The purpose of this invention is to provide a porous sample holder for nano-ion probes suitable for geological sample analysis, overcoming the shortcomings of existing NanoSIMS sample holders such as limited capacity, simple structure, and large material weight, and meeting the needs of high-throughput micro-area analysis of geological samples in batches.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A porous sample holder for nano-ion probes suitable for geological sample analysis includes a square sample holder body with multiple sample mounting holes, specifically three one-inch circular holes, two half-inch circular holes, and two 10-millimeter circular holes. The holes are spaced appropriately and equipped with limiting structures, such as limiting steps or slots, to prevent sample movement or detachment during analysis. The sample holder body is made of titanium alloy, offering high strength, low weight, and good vacuum compatibility. Mounting holes for positioning and installation can be provided on the edges or corners of the sample holder to facilitate integration with the sample introduction system of a nano-ion probe analyzer.
[0006] Compared with the prior art, the present invention has the following beneficial effects:
[0007] The porous square structure design significantly improves the sample carrying capacity, which can meet the needs of high-throughput and multi-sample parallel analysis.
[0008] Made of titanium alloy, the sample holder is effectively reduced in weight while ensuring mechanical strength and corrosion resistance, making it suitable for vacuum and long-term use environments.
[0009] With a reasonable structure and simple operation, it is highly compatible with existing NanoSIMS analysis platforms, improving the efficiency of micro-area analysis of geological samples and laboratory work efficiency. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the porous sample holder for the nano-ion probe applicable to geological sample analysis according to this utility model. Detailed Implementation
[0011] like Figure 1 As shown, this utility model relates to a porous nano-ion probe sample holder suitable for geological sample analysis, comprising a square sample holder body. The sample holder body is made of titanium alloy, which has high strength, low weight, and good vacuum compatibility.
[0012] The sample holder body has seven sample mounting holes: three one-inch (25.4 mm in diameter) circular holes located in the center or symmetrically distributed, two half-inch (12.7 mm in diameter) circular holes, and two 10 mm in diameter circular holes. A reasonable spacing is maintained between the sample mounting holes, and limiting structures (such as steps or slots) are provided at the hole openings to prevent samples from moving or falling off during analysis, ensuring the stability of the sample loading.
[0013] The sample holder body may also have several mounting holes on its edges or corners for positioning and installation, so as to fix and position it with the sample introduction system of the nano-ion probe analyzer, ensuring the reliability of installation and the convenience of operation.
[0014] This utility model has a reasonable sample rack structure design and is easy to load. It is suitable for high-throughput micro-area analysis of geological samples on the NanoSIMS platform, which can significantly improve analysis efficiency, reduce the number of sample replacements, and has good practical application value.
Claims
1. A porous sample holder for nano-ion probes suitable for geological sample analysis, characterized in that, include: The sample holder body is square and has multiple sample mounting holes, including three one-inch circular holes, two half-inch circular holes, and two 10 mm circular holes. Each sample mounting hole is provided with a limiting structure and maintains a reasonable distance.
2. The porous sample holder according to claim 1, characterized in that, The main body of the sample holder is made of titanium alloy.
3. The porous sample holder according to claim 1 or 2, characterized in that, The sample holder body has mounting holes on its edges or corners for positioning and installation, so as to cooperate with the sample introduction system of the nano-ion probe analyzer.
4. The porous sample holder according to any one of claims 1-3, characterized in that, The limiting structure is a limiting step or a slot, used to prevent the sample from moving or falling off during the analysis process.