Аналитические исследования — Альфа-лаб https://alfa-lab.net/en Tue, 13 Oct 2026 11:24:34 +0000 en-US hourly 1 https://wordpress.org/?v=7.1.3 https://alfa-lab.net/wp-content/uploads/2026/06/alfa_logo-150x150.webp Аналитические исследования — Альфа-лаб https://alfa-lab.net/en 32 32 Other analysis methods https://alfa-lab.net/en/other_analyzes/ Thu, 25 Jun 2026 11:28:02 +0000 https://alfa-lab.net/?p=1132

Analytical research

Other analysis methods

Depending on the type of material and the purpose of the study, the laboratory uses gravimetric, titrometric, spectrophotometric, electrochemical and other methods of analysis.

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Flexible method selection

The analysis method is selected taking into account the type of material, the research task, and the required accuracy.

Different types of analysis

Gravimetric, titrometric, spectrophotometric, electrochemical and other methods are used.

Non-standard tasks

Suitable for research that requires an individual analytical approach.

Validity control

The results are accompanied by internal quality control during the analysis stages.

About the destination

In addition to the main instrumental methods of analysis, the laboratory of Alfa-Lab LLP applies additional analytical approaches to solve customer problems. The choice of method depends on the type of material to be tested, the components to be determined, the required measurement range, and the research objectives.

Gravimetric, titrometric, spectrophotometric, electrochemical and other methods of analysis can be used in the work. This approach allows you to flexibly select a solution for various research objects and get the data necessary for further production and technological solutions.

Other methods of analysis are used both as an independent direction and as part of complex laboratory studies, when it is necessary to supplement the main methods or clarify individual indicators of the material.

What tasks are used for

  • Determination of individual components in samples and materials
  • Addition of basic analytical research methods
  • Solving non-standard laboratory tasks
  • Control of the composition of raw materials and technological products
  • Selection of the analysis method for a specific task of the customer

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What the customer receives

Selected analysis method

The laboratory determines the optimal approach based on the research material and task.

Data on the composition of the material

The analysis results help you evaluate the properties of raw materials, samples, or process products.

Complete solution

If necessary, additional methods are used together with the main studies.

]]> Assay method with atomic absorption termination https://alfa-lab.net/en/assay_atomic_absorption_analysis/ Thu, 25 Jun 2026 10:49:52 +0000 https://alfa-lab.net/?p=1095

Analytical research

Assay method with atomic absorption termination

Assay method with atomic absorption termination Used to determine low gold and silver content in mineral raw materials. The method combines fire assay with subsequent instrumental analysis of the solution.

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Low gold content

Determination of gold at low concentrations-from 0.05 g/t.

Combined method

Combination of assay melting and subsequent spectral analysis of the solution.

Increased sensitivity

The method is used when standard assay analysis is not sufficient to accurately determine small concentrations.

Gold and Silver

Determination of precious metals after dissolution of the gold-silver crown.

About the method

The assay method with atomic absorption termination is used to increase the sensitivity and accuracy of the analysis when determining low gold and silver contents.

The method combines assay melting with subsequent spectral determination of precious metals. After assay melting, the resulting gold-silver kinglet is dissolved in aqua regia, and then the resulting solution is analyzed by an instrumental method.

As a final step, atomic absorption spectroscopy (AAS) or inductively coupled plasma atomic emission spectroscopy (ICP-AES) can be used. Modern devices allow you to determine small amounts of a substance in solutions.

The assay-atomic absorption method makes it possible to determine the gold content from 0.05 g/t. As a result, the method is widely used in modern analytical laboratories when working with materials with low concentrations of precious metals.

What tasks are used for

  • Determination of low gold content in mineral materials
  • Analysis of samples with gold content below 2-4 g / t
  • Updating the results of assay analysis
  • Research of poor ores, tailings and processed products
  • Determination of gold and silver after assay melting

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What the customer receives

Analysis results

Data on gold and silver content in materials with low concentrations of precious metals.

Increased sensitivity

Ability to determine gold from 0.05 g / t after assay preparation and spectral analysis.

Data for solutions

Information for evaluating poor ores, processing tailings, and process products.

]]> Assay analysis https://alfa-lab.net/en/assay_analysis/ Thu, 25 Jun 2026 10:15:58 +0000 https://alfa-lab.net/?p=1067

Analytical research

Assay analysis

Assay analysis It is used for the accurate determination of gold and silver content in solid mineral materials, including ores, placers, concentrates, processing tailings and metallurgical products.

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Gold and Silver

Determination of the content of precious metals in solid mineral materials.

Large attachments

The ability to analyze samples weighing 50 g or more to increase the representativeness of the result.

High reproducibility

The method allows you to get stable results when re-analyzing samples.

Accurate measurements

Weighing of kinglets is performed on special high-precision assay scales.

About the method

Assay analysis is one of the main methods for determining the gold and silver content in solid materials: ores, placers, concentrates, processing tailings, matte and compact metal.

The method involves a combination of pyro-and hydrometallurgical operations that allow the quantitative isolation and concentration of precious metals. Due to this, assay analysis provides good reproducibility of results and is used for both rich and poor in gold content materials.

The key stage of assay analysis is melting. During the melting process, precious metals are concentrated in the metal alloy, after which further separation and weighing operations are performed. Special high-precision assay scales are used to determine the gold and silver content.

This method is especially important when analyzing samples for gold, as it allows you to work with fairly large samples of material — 50 g or more. This increases the representativeness of the analysis, especially when studying materials with an uneven distribution of the defined element.

What tasks are used for

  • Determination of gold and silver in ores
  • Analysis of placers, concentrates and tailings of processing
  • Control of the content of precious metals in metallurgical products
  • Research of poor and complex materials
  • Confirmation of results when reanalyzing samples

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What the customer receives

Analysis results

Data on the gold and silver content in the test material.

Data for solutions

Information for evaluating raw materials, concentrates, processing tailings, and metallurgical products.

Validity control

Reproducible results that can be used for production and process control.

]]> ICP-NPP Analysis https://alfa-lab.net/en/es_analysis/ Thu, 25 Jun 2026 09:40:30 +0000 https://alfa-lab.net/?p=1027

Analytical research

ICP-NPP Analysis

Highly sensitive multi-element analysis method for determining the chemical composition of ores, processed products, solutions, activated carbons, resins and other process materials.

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Multi-element analysis

Simultaneous detection of a wide range of elements in a single sample.

Wide range of concentrations

It is suitable for analyzing both high and trace element contents.

Accuracy and reproducibility

Stable results due to modern instrumentation and quality control.

Versatility of application

It is used for the analysis of ores, processed products, solutions, activated carbons and resins.

About the method

ICP-NPP-inductively coupled plasma atomic emission spectrometry. This is a highly sensitive method of analysis based on plasma atomization of a substance from solution, followed by measurement of the spectrum of the excited state of atoms.

The method is used for simultaneous multi-element analysis in a wide range of concentrations. ICP-NPP is used both for the determination of high concentrations of elements and for the analysis of trace contents. The detection limits of most elements are below the background concentrations for various rock types.

The laboratory of Alfa-Lab LLP uses multi-specialty ICP spectrometers Agilent 5110 and Varian 720-ES. The equipment is used for quantitative analysis of elements in ores, their processed products, solutions, activated carbons, resins and other materials.

The results of the analysis help the customer to control the composition of raw materials and technological products, evaluate the quality of materials and make production decisions based on reliable laboratory data.

What tasks are used for

  • Multi-element analysis of ores and concentrates
  • Control of the composition of technological solutions
  • Analysis of processed products and tailings
  • Determination of elements in activated carbons and resins
  • Quality control of raw materials and process materials

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What the customer receives

Analysis results

Reliable data on the elemental composition of the studied materials within the established time limit.

Data for solutions

The basis for quality control, raw material evaluation, and technological decision-making.

Expert support

Expert advice on method selection, interpretation of results, and further work with the material.

]]> Analysis of sulfur and carbon by infrared absorption https://alfa-lab.net/en/sulfur_carbon_analysis/ Thu, 25 Jun 2026 08:53:48 +0000 https://alfa-lab.net/?p=954

Analytical research

Analysis of sulfur and carbon by infrared absorption

Rapid analysis of total carbon and sulfur in ores, processing products, metals, steels, alloys, and other inorganic materials by infrared absorption.

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Carbon and sulfur

Determination of total carbon and sulfur content in different types of materials.

Wide range of materials

Analysis of ore raw materials, processing products, metals, steels and alloys.

Rapid analysis

The nominal analysis time is about 40 seconds after sample preparation.

Measurement accuracy

Measurements are performed using methods that control accuracy and save the results.

About the method

The total carbon and sulfur content is determined by oxidative melting in the oxygen flow on a LECO SC-144DR gas analyzer.

The method is intended for rapid analysis of total carbon and sulfur in ferrous and non-ferrous metals, steels, alloys, ore raw materials, enrichment products and other inorganic materials. It is used in the metallurgical and machine-building industries, as well as in laboratory and research practice.

The principle of operation is based on burning a sample sample in a special ceramic crucible in an induction furnace. After combustion, the carbon and sulfur content is determined in the gaseous compounds co₂ and so₂ by infrared absorption.

Measurements are performed in accordance with approved methods. The device is controlled by a computer that can store up to 32,000 analysis results in its memory.

Mass fraction measurement range, %:
carbon 0.0004-100%
sulfur 0.0004-26%

Accuracy, %:
carbon and sulfur & #8212; 0.0002%

Nominal analysis time:
40 seconds.

What tasks are used for

  • Determination of total carbon and sulfur in ore raw materials
  • Quality control of fortification products
  • Analysis of metals, steels and alloys
  • Research of inorganic materials
  • Production and laboratory control of the composition

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What the customer receives

Analysis results

Data on the total carbon and sulfur content in the test material.

Composition control

Information for evaluating the quality of raw materials, processing products, metals and alloys.

Operational data

Express results for production, technological and laboratory control.

]]> Atomic Absorption method https://alfa-lab.net/en/atomic_absorption_analysis/ Wed, 24 Jun 2026 17:36:20 +0000 https://alfa-lab.net/?p=882

Analytical research

Atomic Absorption method

Highly sensitive method for determining elements in ores, concentrates, solutions, and process products.

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High sensitivity

Determination of trace and low concentrations of elements

Wide range of elements

Analysis of more than 70 elements in one study

Accuracy and reliability

Consistent results and quality control at every stage

Compliance with standards

We work according to the requirements of ISO / IEC 17025 and internal quality system

About the method

Atomic absorption spectrometry (AAS) is based on measuring the absorption of resonant radiation by free atoms in the gas phase in a relatively short time. Having emerged more than half a century ago, the AAS method has reached a very wide distribution in the analytical practice of analyzing the elemental composition of a substance. AAS is characterized by high selectivity, sensitivity, and expressiveness.

The development of this method of analysis expands the possibilities of application in analytical chemistry. Flame absorption surpasses such classical chemical methods as gravimetric, titrometric, spectrophotometric, electrochemical, etc. in terms of productivity and speed of analysis of large batches of the same type of samples. When determining ultra-low concentrations of individual elements, electrothermal atomic absorption successfully competes with many instrumental methods of analysis. At the moment, the AAC can identify about 70 elements-metals and non-metals. For most of the identified elements, it is possible to achieve relatively low detection limits: in the flame version - from tenths to tens or hundreds of micrograms/l. Also, the advantage of AAS is its versatility in relation to a wide variety of analysis objects, the possibility of using it both to determine traces and to reliably and accurately determine the main components in samples of complex compositions.

What tasks are used for

  • Control of metal content in ores and concentrates
  • Analysis of process solutions and wastewater
  • Monitoring of impurity and toxic elements
  • Input and output control of raw materials and products
  • Development and optimization of technological processes

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What the customer receives

Analysis results

Accurate and reliable data on time with the completion of protocols.

Technological solutions

Reliable base for quality control and process optimization.

Expert support

Advice and support of specialists at all stages of work.

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