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Standard solution for detecting content of trace elements in quartz sand and preparation method of standard solution

A medium and trace element, standard solution technology, applied in instruments, thermal excitation analysis, analysis materials, etc., can solve the problems affecting the accuracy of analysis results, large matrix interference, high price, etc., to eliminate matrix interference, difficult to concentration change, Good applicability

Inactive Publication Date: 2018-06-12
(CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, the standard solutions sold on the market are all multi-element mixed standard solutions. When applied to the analysis of quartz sand, the matrix interferes greatly, which affects the accuracy of the analysis results. Moreover, the mixed standard solutions are expensive and difficult to store.

Method used

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  • Standard solution for detecting content of trace elements in quartz sand and preparation method of standard solution
  • Standard solution for detecting content of trace elements in quartz sand and preparation method of standard solution

Examples

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Effect test

Embodiment 1

[0046] Embodiment one, Al in the siliceous sandstone standard sample of known composition 2 o 3 , Fe 2 o 3 、TiO 2 、K 2 O, Na 2 Detection of O, CaO and MgO content:

[0047] 1. Accurately weigh 0.2g of a siliceous sandstone standard sample that has been dried at 100°C for 2 hours in a platinum dish, moisten it with a small amount of water, add 1mL of perchloric acid and 10mL of hydrofluoric acid, heat and dissolve on a low-temperature electric furnace, and evaporate to Dry until the white smoke is exhausted, cool, add 10mL nitric acid and appropriate amount of water, heat to dissolve, transfer to a 100mL volumetric flask after cooling, dilute with water to the marked line, and shake well. Use the same procedure to make a reagent blank.

[0048] 2. Ignite, preheat the ICP instrument, set the best instrument conditions, according to the analysis control program, inhale 5% nitric acid solution standard blank solution and the multi-element standard series solution prepared b...

Embodiment 2

[0052] Embodiment two, in the quartz sand of Fengyang, Anhui Province, Al 2 o 3 , Fe 2 o 3 、TiO 2 、K 2 O, Na 2 Detection of O, CaO and MgO content:

[0053] 1. Accurately weigh 0.5000g of the quartz sand sample from Fengyang, the place of origin, which has been dried at 105°C-110°C for 2 hours, put it in a platinum dish, moisten it with a small amount of water, add 1mL perchloric acid and 10mL hydrofluoric acid on a low-temperature electric furnace Heat to dissolve, evaporate to dryness until the white smoke exhausts, cool, add 10mL nitric acid (1+1) and appropriate amount of water, heat to dissolve, transfer to a 100mL volumetric flask after cooling, dilute with water to the marked line, and shake well. Use the same procedure to make a reagent blank.

[0054] 2. Ignite, preheat the ICP instrument, set the best instrument conditions, according to the analysis control program, inhale 5% nitric acid solution standard blank solution and the multi-element standard series so...

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Abstract

The invention relates to a standard solution for detecting the content of trace elements in quartz sand and a preparation method of the standard solution. The standard solution comprises, by mass fraction, 90-100g / L of aluminum oxide standard solution, 15-30g / L of ferric oxide standard solution, 15-30g / L of titanium dioxide standard solution, 15-30g / L potassium oxide standard solution, 15-30g / L ofsodium oxide standard solution, 15-30g / L of calcium oxide standard solution and 15-30g / L of magnesium oxide standard solution. The standard solution has the advantages that the single standard solutions are prepared by dissolving the oxides, chlorides or carbonates of elements in acid or water, and the prepared standard solution is high in applicability and accurate and reliable in analysis result when the prepared standard solution is applied to the ICP (inductively coupled plasma) detection of the trace elements in the quartz sand; compared with traditional chemical analysis methods, the standard solution greatly simplifies the analysis process and improves analyzing efficiency; the standard solution is low in matrix interference, easy to store, capable of achieving repeated preparationand high in applicability.

Description

technical field [0001] The invention relates to the technical field of sandstone component analysis, in particular to a standard solution for detecting trace element content in quartz sand and a preparation method thereof. Background technique [0002] Quartz sand is a kind of quartz particles made by crushing quartz stone. Its main component is silicon dioxide, and generally contains trace metal elements such as aluminum, iron, titanium, potassium, sodium, calcium, and magnesium. At present, the domestic method of testing the composition of quartz sand is mainly based on the industry standard JC / T753-2001 "Chemical Analysis Method for Siliceous Glass Raw Materials". The existing methods are mainly based on the classical chemical analysis method to analyze each element in the quartz sand one by one. The detection and analysis efficiency is low, and the full analysis of a sample often takes one or two working days, which cannot meet the needs of production control. [0003] ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/73
CPCG01N21/73G01N2201/1293G01N2201/13
Inventor 彭寿马立云徐炜王友乐赵洪义舒灵秀马俊汪冰洁王晶周玉晓倪晶晶张望
Owner (CNBM) BENGBU DESIGN & RES INST FOR GLASS IND CO LTD
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