Ionic liquid and application thereof in SEM-EDX detection as conductive treating agent
A SEM-EDX, ionic liquid technology, applied in ionic liquid and its application in SEM-EDX detection, can solve the problems of restricting the popularization and use of SEM-EDX, high cost, high technical difficulty, and achieves strong stability and cost. Inexpensive and wide-ranging effects
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Embodiment 1
[0030] The invention provides an ionic liquid, specifically, a 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid.
Embodiment 2
[0032] The invention also discloses the use of the 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid to conduct conductive treatment on insulating samples before SEM-EDX detection.
[0033] Generally, the 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid needs to be diluted during use, and the diluent used is ethanol and / or acetone; the 1-ethyl-3-methyl After the imidazolium tetrafluoroborate ionic liquid is mixed with the diluent, a diluent is formed;
[0034] In the diluent, the mass fraction of the 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid is any one of 0.01%, 0.1%, 0.5%, 1%, and 5%.
[0035] The use of diluent can reduce the viscosity of 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid, and can form a thinner ionic liquid film layer, which is more conducive to the subsequent SEM-EDX detection.
Embodiment 3
[0037] The present invention also provides a SEM-EDX detection method using the 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid as a conductive treatment agent, to be located in Sakurajima, Kagoshima County, Kyushu, Japan Take the SEM-EDX detection of volcanic ash collected from a volcano (E31°35′N 130°39′) as an example, including the following steps:
[0038] a. Determine the nature of the sample to be tested: there are 5 insulating samples (volcanic ash) to be tested, and the particle size of each volcanic ash is between 50 and 100 μm, that is, they are all greater than 10 μm, and they are all insulators. The volcanic ash is subjected to conductive treatment;
[0039] b. Preparation of ionic liquid diluent: at room temperature, mix 1-ethyl-3-methylimidazolium tetrafluoroborate ionic liquid and diluent to form a diluent;
[0040] The diluent is a mixture of ethanol and acetone in an equal mass ratio; in the diluent, the mass fraction of the 1-ethyl-3-methylimidaz...
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