Gravimetric & Basic Chemical Assays
Gravimetric and basic chemical assays are classical analytical methods that determine material composition through precise mass-based measurements, including controlled drying, ignition, precipitation, filtration, and residue analysis. Complementary qualitative and quantitative assays are used to identify key ions, functional groups, and chemical reactivity, providing direct and highly reliable measurements of material constituents.
At Materials Metric, gravimetric and classical chemical assays deliver robust, traceable data essential for verifying chemical composition, purity, moisture content, ash levels, insoluble fractions, and batch consistency. These methods support formulation development, quality control, impurity assessment, and regulatory documentation across pharmaceuticals, biomaterials, polymers, chemicals, and industrial products.
Uses of Gravimetric & Classical Chemical Assays
• Quantify moisture, volatile content, or ash/residue
• Identify metal ions, salts, precipitates, or inorganic content
• Assess solubility, reactivity, and chemical identity
• Confirm raw material purity
• Detect contamination or formulation inconsistencies
• Support early-stage R&D and failure analysis
Applications
- Polymers, adhesives, coatings, and composites
- Pharmaceutical APIs and excipients
- Ceramics, catalysts, and inorganic powders
- Consumer and industrial chemicals
- Food and agricultural products
- Environmental and residue testing
Sample Analysis Process
1. Objective Definition
- Identify property or analyte of interest
- Select appropriate gravimetric or classical chemical method
2. Sample Preparation
- Controlled drying, heating, or ignition
- Dissolution or precipitation if required
- Filtration or isolation of analyte
3. Gravimetric or Chemical Testing
- Moisture / volatile determination
- Ash or inorganic residue quantification
- Precipitation-based analyte isolation and weighing
- Functional group and ion-identification assays
- Solubility and reactivity analysis
4. Reporting
- Quantitative mass results (% or mg/g)
- Qualitative identification outcomes
- Interpretation linked to purity, contamination, or performance
Why Choose Materials Metric
Materials Metric provides high-precision gravimetric and classical chemical assays delivered through controlled workflows and deep analytical chemistry expertise.
We offer:
• Highly accurate mass-based methods for purity, residue, and composition
• Classical assays for ion detection, functional groups, and qualitative screening
• Expertise with polymers, ceramics, biomaterials, pharmaceuticals, and industrial materials
• Regulatory-aligned documentation suitable for QC audits and FDA/ISO submissions
• Multi-technique integration with ICP, chromatography, FTIR, titration, and stability studies
Our analyses deliver objective, defensible data essential for verifying chemical identity, confirming formulation performance, and ensuring product quality.