Sample Preparation, sample vials, Lab Filtration
Sample Preparation (analytical chemistry)
Sample Preparation, in analytical chemistry, the processes in which a representative piece of material is extracted from a larger amount and readied for analysis. Sampling and sample preparation have a unique meaning and special importance when applied to the field of analytical chemistry. Analytical chemistry in all its diverse forms can be looked upon as a multistep endeavor with the measurement phase but one link near the end of a chain of operations. That chain begins with sampling, an essential process that underlies all subsequent work and imparts relevance to what would otherwise be a meaningless exercise.
Analytical Sample Prep Products for a Range of Applications and Tests
Sampling is critically relevant everywhere that analytical chemistry has a role to play. Ambient sampling of the atmosphere is used to provide analytical data on seasonal or other trends that can be correlated with natural or societal processes. For example, the extent of the Antarctic ozone hole and its relation to fluorocarbon use were confirmed by this means. Near ground level, monitoring sites provide data for air-quality assessment, for the design of pollution-control strategies, and for regulatory enforcement. Groundwater-monitoring wells are used to sample aquifers in order to ensure water quality.
- Applications: Pharmaceutical Finished Product
Tests: Tablet Pre-formulation, Candidate Evaluation, Tablet and Capsule Assay, Tablet Stability, Drug Assay, Blend Uniformity, Dissolution Testing, Dosage Form Development, Particulate Removal, Sample Clarification
Applicable Filtration Products: Syringe Filters, Membrane Disc Filters, Sample Vials.
- Applications: Pharmaceutical Raw Materials, Food and Beverage.
Tests: Analytical Sample Preparation
Applicable Filtration Products: Syringe Filters, 96 Filter Plates, Membrane Disc Filters, Sample Vials.
- Applications: HPLC
Tests: Analytical Sample Preparation; Mobile Phase Filtration.
Applicable Filtration Products: Syringe Filters, 96 Filter Plates, Membrane Disc Filters, Sample Vials.
- Applications: UHPLC
Tests: Analytical Sample Preparation
Applicable Filtration Products: Syringe Filters with PVDF, Nylon, PTFE, and Sample Vials.
- Applications: GC
Tests: Analytical Sample Preparation
Applicable Filtration Products: Syringe Filters with PTFE, Sample Vials.
Septa Selection Guide
PTFE
- Recommended for single injection application
- Ideal for use in MS applications
- Excellent solvent resistance and chemical compatibility
- Does not reseal upon punching
- Not for Long-term sample storage
PTFE/Silicone
- Recommended for multiple injection and sample storage
- Excellent resealing
- PTFE chemical resistance until punctured, then will have the chemical compatibility of silicone
- Working temperature range from -40°C to 200°C
Pre-slit PTFE/Silicone
- Prevent vacuum formation in vials
- Eliminates coring from bottom draw-port needles
- Good resealing capabilities
- Recommended for multiple injections
- PTFE chemical resistance until punctured, then will have the chemical compatibility of silicone
- Working temperature range from -40°C to 200°C
MS Experience in Sample Preparation
Membrane Solutions LLC (MS) is one of world's leading suppliers in consumable products for both laboratorial and industrial applications. MS was founded by industrial veterans with average 20 years' experience and deep domain knowledge. Since inception, MS has focused on sample preparation solutions, filtration & purification and other related fields.
Today, MS has built solid footings in two business units – Lab consumables and Industrial Process. MS works with 200 distributors in 80 countries with a rich portfolio of over 3,000 products.
From innovation to manufacturing, Membrane Solutions is expert in efficiency optimization. As a result, MS has clearly established our brand name as alternative of Top Brand in disposable commodities. In the past years, MS has been OEM Services of Choice covering 20 product categories for five key accounts, two of which are exclusive. With strategic emphasis on product innovation/design, MS has developed patent technologies to service a wide range of applications, from chemistry analysis to cell culture, and from laboratories to industries.
We are committed to provide quality products and services at optimum cost and to continually improve the quality management system through TQM & ISO9001 approach.
Features & Benefits of MS® Filtration & Purification
- All MS filters has ISO 9001 Certification & CE Marks
- Global Supply Chain and Efficient Customer Service
- Glass 100,000 Clean Room
- Quick Delivery of 5-7 days guaranteed
- OEM Option, Private Labeling Service
- Consistent QA and Stable Product Supply
- Multiple type option suitable for various of applications
Recommended MS® Products
 |
 |
 |
|
MS® 2ml Clear/Amber Sample Vials MS® Sample Vials are manufactured from borosilicate glass and meets ASTM Type I Class A and USP Type I standards, which improves your laboratory productivity by reducing costs and saving time. These products considerably reduce the risk of analytical test results compromised by ghost peaks, damaged needles or dislodged septa, decreasing analysis failures and sample returns. |
MS® Crimp Caps for 2ml Sample Vial MS® Crimp Caps squeeze the septum between the rim of the glass vial and the crimped aluminum cap. This forms an excellent seal preventing evaporation. The septum stays seated during piercing by the auto sampler needle. The crimp cap vial requires crimping tools to carry out the sealing process. |
MS® Screw Caps for 2ml Sample Vials MS® Screw Caps are universal. Screwing the cap applies a mechanical force that squeezes the septum between the glass rim and the cap. Screw caps form an excellent seal and mechanically hold the septum in place during piercing. No tools are required for assembly. |
Related Links