A method and a container for preparing a fused sample for analysis

A sample and container technology, applied in the field of preparation and analysis of fusion samples, can solve problems such as errors, uneven distribution of precious metals, uneven precious metals, etc.

Inactive Publication Date: 2017-12-01
IMP GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The problem with sample preparation described above relates to the fact that the precious metals contained in the isolated lead buttons are often unevenly distributed
Since spectroscopic analysis techniques typically only detect the precious metal content of a sample in a small area, significant errors can occur if the precious metal is unevenly distributed within the lead buckle

Method used

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  • A method and a container for preparing a fused sample for analysis
  • A method and a container for preparing a fused sample for analysis
  • A method and a container for preparing a fused sample for analysis

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Embodiment Construction

[0048] The present invention relates to a method and container for preparing a mineral sample for analysis, such as spectroscopic analysis, to determine the content of precious metals in the sample.

[0049] Mineral samples for spectroscopic analysis are usually fused with fluxes and collection materials prior to analysis. Fluxes can be used to lower the melting point and impart uniform flow to the sample. Fluxes can also contain collection materials such as lithium batteries and silver. The sample and flux mixture is then placed in a furnace and heated to about 1000°C to form a melt. The slag floats on the top of the melt, and the collection material and the precious metal alloy in the sample sink to the bottom, forming a molten pool of molten collection and precious metal, then the molten pool is separated from the slag and cooled rapidly until a homogeneous snap is formed.

[0050]Spectral analysis is then usually performed directly on the snap. Suitable spectroscopic te...

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Abstract

The present disclosure provides a container and a method for preparing a sample for analysis. The container comprises a cavity for receiving a sample including a collector material and a precious metal. The cavity is suitable for melting the sample and oxidising the collector material. The cavity comprises a first region defined by a porous material that is capable of absorbing the collector material when oxidised and molten. The cavity further comprises a second region defined by a material that is largely incapable of absorbing the molten and oxidised collector material. The second region is capable of holding a volume of the molten sample. The container is arranged and the method is conducted such that, when the sample has melted and has reduced in volume due to absorption by the porous material of the first region, at least a portion of the remaining sample remains in the second region.

Description

technical field [0001] The present invention relates to methods and containers for preparing and analyzing fused samples. Background technique [0002] In order to determine the content of rare or precious metals in mineral samples, it is usually necessary to analyze mineral samples containing rare or precious metals. One method of analyzing precious metal mineral samples involves the use of spectroscopic techniques, such as laser ablation or optical emission spectroscopy. In these methods, a mineral sample is first fused with a flux prior to analysis. Sample preparation typically involves mixing the sample with a flux material (eg, a very large flux material), and placing the resulting mixture in a crucible and heating it in a furnace to form a melt. The bulk of the flux material is reduced to molten lead which collects the precious metal and settles to the bottom of the crucible. [0003] Several methods are available to separate lead and precious metals from the result...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/34B01L3/04C22B11/00G01N1/40G01N1/44
CPCG01N1/28G01N1/34G01N1/44G01N1/40C22B11/02B01L3/04G01N1/405B01L2300/0851C22B11/00
Inventor 特雷-布兰奇·德·容皮埃尔·卡雷尔·霍夫迈尔阿诺·范德·弗斯特赫伊曾博伊恩·弗里德里希·霍恩施泰因
Owner IMP GRP
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