CN101799378A

CN101799378A - Improved standard-preparing mode for reforming whole rock spectrum quantification

Info

Publication number: CN101799378A
Application number: CN200910113853A
Authority: CN
Inventors: 李增怀
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-06
Filing date: 2009-02-06
Publication date: 2010-08-11

Abstract

A standard prepared by a sample-simulating mode during rock spectrum quantification is only suitable for a simulated sample but not suitable for other composition samples, and people are impossible to continuously simulate standards and research methods to suit new samples. Accordingly, a fixed standard mode is proposed, the components of reformed samples, standards and buffering agents are together adjusted as required, all the samples form similar mutual derivatives, and each standard is a one-absent-in-four frame. In analysis, sample difference components are filled in a frame, and two components are fully similar and accord with spectrum quantification conditions so that the content can be tested by one standard and one method only if the content is in the line part of a curve no matter which rock an element to be tested (such as Pb or Sn) exists in. All spectrum methods generated by the mode have simplified flows, high working state entering speed and low cost, and a plurality of elements can be shunted from a solution only by several methods.

Description

Improve the standard-preparing mode for reforming whole rock spectrum quantification

One, technical field

All the rock spectrum quantification methods reserve sample Main Ingredients and Appearance and less important compositions of matrix separately all so far, therefore the standard that simulates only is fit to the sample of corresponding component.This pattern is unified the Main Ingredients and Appearance and the less important composition of each sample, make their similar derivants each other on component, thereby the available common standard for preparing is in advance finished the mensuration of identity element

Two, background technology

Between standard and sample, set up a common frame: [25%SiO ₂+ 25%CaCO ₃+ 25% fixing buffering agent], make all samples similar derivant each other on component, and standard is framework.It is identical with less important composition similar with 75% component to be both Main Ingredients and Appearance greatly.To be all the selected condition of work in basis greatly, the preceding small difference that only needs preparation to analyze sample of test is finely tuned then both components maintenance balances to each standard point.Be that an available cover standard replaces many covers standard to finish the mensuration of identity element in the rock ore deposit step by step this moment.

Three, summary of the invention

Will carry out three aspect transformations early stage:

Sample: be divided into two classes, the one, can be formed directly in framework.As: SiO ₂More than or equal to or near 50% and CaCO ₃More than or equal to or near 50% sample; The another kind of SiO that needs ₂Could form framework after the dilution in 1: 1.

Buffering agent: being divided into two respectively accounts for 50%, 1/2 and is fixing buffering agent, to its relative fixed of method, and its composition and acting on by traditional method requirement.1/2 is the variable buffering agent, is respectively SiO ₂Or CaCO ₃By SiO ₂Be called slow when forming with fixing buffering agent ₁, by CaCO ₃Claim to delay when forming with fixing buffering agent ₂Slow ₁Gentle ₂Select for use in sample, to form framework and make unique selection.

Standard:, press SiO with natural siliceous sand and lime masonry raw material ₂: CaCO ₃For basic thing allocate to be measured element at=1: 1 also forms series.This standard specially at any particular sample, but is not used for all samples, can prepare in advance and store.

Operation and explanation:

1. between sample, set up framework:

Take by weighing SiO ₂More than or equal to or near 50% sample: sample: slow ₂=1: 1

Take by weighing CaCO ₃More than or equal to or near 50% sample: sample: slow ₁=1: 1

Take by weighing and do not contain or contain less SiO ₂And CaCO ₃Sample: 1: (1 part of S iO ₂+ 2 parts slow ₂)

The first two sample can be with batch mensuration, and back one sample standard also should so be handled then and measure separately.

2, replica small difference fine setting standard point makes both keep the component balance:

This is uniquely to need matching while using reagent, but consumption is few, and the component ratio does not require very accurate, and total amount is 1 gram, but should grind evenly, is weighed into the two ratio of point hours and wants accurate.

Operation: calculate and analyze the sample small difference and form contained quantity in 1 gram, it is even to weigh up the back mill respectively, adds each standard point that has formed framework with 1: 3, and mixing gets final product.

3, apply mechanically existing rock ore deposit silicate spectrum sizing technique and finish identity element mensuration step by step.

Four, embodiment

Over more than 50 year in systems such as geology, metallurgy, coloured, chemical industry many methods that collected, though these methods all are not suitable for testing other component sample with the synthetic basic thing preparation standard of simulation sample component, but have its points of course greatly, with decimated, use by oneself according to qualifications in good, the method that only can measure a kind of component is become the method for measuring countless components remove to measure identity element.The nineties, I did a boron, lead, the supporting method of tin geochemical exploration with above-mentioned principle, and oneself finished ten thousand various product in 2 years, and annual qualification rate is near 98%, and can finish a collection of every day.With: GSD _1-12, GSS _1-8, GSR _1-6, and whole GRD produce, element result and definite value fit like a glove.These samples also have CaO=38% except that major part is silicate, they all use same curve to finish.This method also can be used for measuring volatile each element.

The rock ore deposit is broken into and is powder, emission spectrum, the X fluorescence spectrum of finishing mensuration with solid should be the most desirable analysis means, yet be subjected to the restriction of matrix effect, limited in the field tests effect of rock ore deposit in decades, now this difficult point has solved, but each geologic prospecting party, test center, research institute widespread usage all.

Adopt framework, not only solved of the interference of calcium height, also realized the common survey of two kinds of samples that the nature frequency of occurrences is the highest element to be measured.No matter silica sand still is that all available method of lime stone, a curve are measured its impurity content, concerning the research karst landform, very big realistic meaning is arranged.Equally the framework component change into other petrogenic element as: magnesium oxide, iron oxide, aluminium oxide etc. also can reach the effect that two class rock ore deposits are surveyed altogether.

Replace solution with powder and carry out the test of rock ore deposit, can avoid sample and decompose this arduous engineering, meet very much China and economize on resources to reduce and pollute this fundamental state policy.

Claims

1. one is the custom-designed fixed standard pattern of rock spectrum quantification.Described pattern is made of: fixed standard, analytical sample, buffering agent, primary standard substance and some chemical reagent.Fixed standard base thing selects two purity height, the most common quartzose sandstone and the lime stone rock of easy collection again, through be crushed to the sample same particle sizes after with SiO ₂: CaCO ₃=1: 1 forms.Compound method is identical with traditional mode, and owing to institute adds primary standard substance seldom, its composition still can be regarded basic thing as.Analytical sample is through being transformed into SiO ₂Or CaCO ₃Content for greater than, equal or near about 50%, buffering agent is preferably identical with traditional mode, get after choosing partly and SiO ₂And CaCO ₃With: buffering agent: SiO ₂Claim delay at=1: 1 ₁, buffering agent: CaCO ₃Claim delay at=1: 1 ₂, at this moment buffering agent, slow is arranged ₁, slow ₂

2. fixed standard pattern according to claim 1, it is characterized in that: fixed standard and buffering agent are formed: [25%SiO ₂+ 25%CaCO ₃+ 25% buffering agent]: [25%X component space]=3: 1, the former accounts for total amount 75% big frame, and the latter accounts for total amount 25% 4 and lacks an X component space.

3. fixed standard pattern according to claim 1 is characterized in that: available slow ₁Gentle ₂Analytical sample is carried out the component adjustment, all can form the big frame that account for total amount 75% similar to standard.Like this no matter original sample component difference how becomes the new sample of similar derivant each other this moment.

4. as fixed standard pattern as described in the claim 2,3, it is characterized in that: concerning a kind of sample, standard and sample all have an identical frames.Be that the two 75% component is similar, Main Ingredients and Appearance, less important composition are identical, only need prepare 25% sample difference component this moment and four of standard is lacked spaces fill, and just can carry out quantitative to element to be measured by selected workpiece condition.

5. as fixed standard pattern as described in the claim 2,3,4, it is characterized in that: concerning multiple different sample, only need duplicate corresponding sample difference component and insert the space of 25% standard four scarce, just can realize: no matter which kind of rock ore deposit element to be measured exists among, as long as its content distribution is measured out respectively with it with regard to an available cover standard, a method at curve of spectrum straight line position.

6. as fixed standard pattern as described in the claim 2,3,4, it is characterized in that: when sample is silica sand and lime stone,, can carry out common survey, impurities is quantitatively come out with a method, same curve although this two classes sample component is different fully.

7. as fixed standard pattern as described in the claim 2,3,4,5, it is characterized in that: no matter why the solid sample component changes, all can to form component similar with standard for it, thereby just can eliminate matrix effect with this principle and guarantee to analyze quality, and all Other Instruments methods of directly measuring with solid do not have reliably to eliminate the effective ways of matrix effect, so the suitable all solids of this pattern is finished the method for measuring use.

8. as fixed standard pattern as described in the claim 1,2,3,4,5,6,7, it is characterized in that: except the consumption that uses buffering agent is restricted, stay the next broad space of choosing the quantitative workpiece condition of every other spectrum according to qualifications to allow spectrum person go to explore the experience that is fit to oneself more, bring into play the opportunity of own intelligence and wisdom, finish the method for other element to be measured from the basis of using fixed standard.