Magnetic adsorbent - Matrix:SiO2,Surface group:-SH,Size:4-5um,unit:10mg/ml

Cat. No.: M121919

GRADE & PURITY Matrix:SiO2,Surface group:-SH,Size:4-5um,unit:10mg/ml

Storage

Room temperature

Shipped In

Normal

Specifications

Spécifications et pureté

Matrix:SiO2,Surface group:-SH,Size:4-5um,unit:10mg/ml

Conditions de stockage de stockage

Room temperature

Expédié en

Normal

Application Protocols

Tested applications, protocols, and recommended conditions are not provided in the Product Data for this SKU.

• Protocols: Not specified for this item; refer to CoA/Spec Sheet.

General workflow considerations (informational, not item-specific): Equilibrate the adsorbent in the working medium, add to the sample under agitation, allow sufficient contact time, magnetically separate, and analyze the supernatant/eluate. Optimize dosage, pH, ionic strength, and temperature empirically.

Biological Roles

This is a laboratory adsorbent material, not a biological molecule. No intrinsic biological role is assigned to this SKU.

General context (not item-specific):

• When functionalized appropriately, magnetic adsorbents are widely used to purify or isolate biomolecules (proteins, nucleic acids, cells) via affinity, ion exchange, or hydrophobic interactions. These are laboratory separation functions rather than endogenous biological roles.
• Iron oxide-based cores, if present, can interact with biological systems, but any toxicology or biodistribution discussion would be highly formulation- and surface-chemistry-dependent and must be derived from the SDS and primary literature for the specific material.

For research use only: This product is intended for research and development workflows, not for diagnostic or therapeutic use.

Buffer Applications

Item-specific buffer compatibility and optimal pH ranges are Not specified for this item; refer to CoA/Spec Sheet.

General guidance for magnetic adsorbents in aqueous systems (not item-specific):

• pH control: Adsorption capacity and selectivity often depend on pH (surface charge and speciation of target). Common practice is to screen pH 3–9 for ion-exchange/chelating surfaces; ensure the material’s stability in the chosen range.
• Ionic strength: Salt can shield electrostatic interactions (decrease binding) or promote hydrophobic binding (“salting out”). Typical screens: 0–1 M NaCl or ammonium sulfate for protein-related separations.
• Buffer composition: Phosphate, Tris, HEPES, acetate are commonly used; avoid buffers that strongly complex the target (e.g., EDTA for metal-binding separations) unless using for elution/regeneration.
• Additives: Detergents or organic modifiers can modulate nonspecific binding; ensure compatibility with the adsorbent’s coating/ligand.
• Regeneration: Elute by pH shift, salt gradient, chelator, or solvent strength, followed by buffer re-equilibration.

Note: Verify allowable buffer components (e.g., presence of organic solvents, reducing agents) for the specific SKU before use.

Green Alternatives

Magnetic separation itself is often a greener alternative to filtration or centrifugation by reducing disposables, energy, and time. Item-specific environmental data are Not specified for this item; refer to CoA/Spec Sheet.

General sustainability perspective (not item-specific):

• Process simplification: Eliminates filter aids and reduces solvent volumes used for washing/transfer steps.
• Reusability: Many magnetic adsorbents can be regenerated multiple cycles, lowering waste; regeneration chemistry must be compatible with the material.
• Safer solvents: Pair magnetic adsorbents with greener solvent systems (e.g., water, bio-based solvents) when compatible with the surface chemistry and target analytes.

Illustrative comparison (general):

• Magnetic adsorption vs filtration: Faster phase separation without filter media; less clogging with viscous or particulate slurries.
• Magnetic adsorption vs centrifugation: Lower energy and capital; scalable with simple magnets; however, very fine or weakly magnetic materials may require stronger fields or longer settling times.
• Trade-offs: Potential metal leaching from cores if coatings are damaged; end-of-life disposal must consider captured contaminants. Verify coating integrity and leachables in your application.

Recommendation: Assess life-cycle impacts by tracking cycles-to-failure, solvent consumption, and waste mass relative to your current separation method.

Pharmaceutical Uses

No pharmacopeial status, excipient listing, or GMP attributes are provided for this SKU. Do not use in drug products unless appropriately qualified.

General, non-clinical context (not item-specific):

• Process development: Magnetic adsorbents can be evaluated as scavengers to remove residual catalysts, leachables, or color bodies from small-molecule process streams at lab/pilot scale.
• Bioprocess R&D: With suitable ligands, they can support rapid prototyping of capture/polishing steps in discovery or non-GMP settings.
• Advantages: Tool-free phase separation, reduced filtration burden, and fast turnaround for scouting experiments.

Important: For any pharmaceutical application, qualification would require full extractables/leachables data, elemental impurities profile, endotoxin/bioburden controls (if aqueous), and change control. These data are Not specified for this item; refer to CoA/Spec Sheet and assess per internal quality systems.

Physical Properties

Item-specific physical data are not supplied in the Product Data. Do not infer values; consult the CoA/Spec Sheet.

• Appearance: Not specified for this item; refer to CoA/Spec Sheet.
• Particle size / distribution: Not specified for this item; refer to CoA/Spec Sheet.
• Surface area (BET): Not specified for this item; refer to CoA/Spec Sheet.
• Pore size / porosity: Not specified for this item; refer to CoA/Spec Sheet.
• Bulk density / tap density: Not specified for this item; refer to CoA/Spec Sheet.
• Magnetic properties (e.g., saturation magnetization, coercivity): Not specified for this item; refer to CoA/Spec Sheet.
• Solubility: Insoluble solid phases are typical; specific media compatibility Not specified for this item; refer to CoA/Spec Sheet.
• Thermal stability, moisture sensitivity: Not specified for this item; refer to CoA/Spec Sheet.

Literature/context (not item-specific):

• Common magnetic cores (magnetite/maghemite) exhibit superparamagnetism at nanoscale, enabling rapid magnetic capture without remanence after field removal.
• Core–shell designs (e.g., silica- or polymer-coated) can improve aqueous/organic compatibility and provide tunable surface chemistry for adsorption by ion exchange, chelation, hydrophobic, hydrogen-bonding, or π–π interactions.
• Physical operating envelopes (pH/temperature) depend strongly on surface chemistry and binder; verify with item documentation before use.

Quality and Grades

• Grade/Purity: Not specified for this item; refer to CoA/Spec Sheet.

Interpretation and impact (general guidance):

• Magnetic adsorbents are often specified by particle size, surface functionality and loading (mmol g−1), inorganic content, moisture/LOI, and sometimes metal leachables. In chromatography/purification contexts, low extractables and defined ligand density improve batch-to-batch reproducibility.
• If designated for analytical applications (e.g., scavenging trace metals or catalysts at ppm levels), supporting documents may report residual metals and background contamination that could interfere with ICP-MS/GC/MS.
• Stability/stabilizers: Some formulations include dispersants or preservatives (for aqueous slurries). None are specified for this item; refer to CoA/Spec Sheet.
• For organic synthesis workflows, check documentation for solvent compatibility and maximum operating temperature to ensure no ligand bleed or core degradation.

Recommendation: Request the current CoA for this SKU to confirm (i) surface chemistry/ligand loading, (ii) particle size distribution, (iii) media compatibility (pH/solvent), and (iv) QC tests relevant to your application.

Reaction and Applications

Manufacturer applications are not specified; below are general uses for magnetic adsorbents (not item-specific). Always confirm compatibility with the item’s documentation.

• Scavenging in synthesis: Post-reaction removal of residual metals (e.g., Pd, Ni, Cu), organocatalysts, acids/bases, and reactive small molecules via chelation, ion exchange, or covalent capture. Magnetic retrieval simplifies separation from viscous or particulate mixtures.
• Sample cleanup: Solid-phase extraction/cleanup for analytical workflows (e.g., dispersive SPE prior to LC/GC), including removal of pigments, proteins, or matrix interferences.
• Bioconjugation/affinity separations: With appropriate ligands, capture of His-tagged proteins (IMAC), biotin/streptavidin systems, or oligo/polymer purification. Note: This SKU’s ligand chemistry is not specified.
• Environmental remediation: Uptake of dyes, phosphates, arsenic/heavy metals from water; magnetic collection facilitates recycling or regeneration.
• Catalysis support: Magnetic cores bearing catalytic sites (acid/base/metal nanoparticles) allow easy recovery and reuse (if applicable to the specific material).

Practical tips (general):

• Pre-equilibrate in the working solvent/buffer to wet the surface and expel trapped air.
• Optimize solid loading (mg adsorbent per mg solute or per mL mixture) and contact time; monitor by analytical methods.
• For regeneration, select desorption agents (pH shift, salt, chelator, solvent strength) compatible with the support; check stability limits.

Reaction Conditions

No item-specific operating ranges (pH, temperature, solvent compatibility, capacity, contact times) are provided. Consult the CoA/Spec Sheet and perform a small-scale screen.

General guidance from literature (not item-specific):

• Contact time: Many sorption processes reach practical uptake within 5–60 min with vigorous stirring; kinetics depend on particle size and diffusion.
• Loading: Typical scouting uses 1–50 wt% adsorbent relative to expected impurity mass; refine based on isotherms.
• Temperature: Ambient conditions are commonly sufficient; modest heating (25–50 °C) may increase rates if the material is stable.
• pH windows: Ion-exchange/chelation surfaces often operate effectively between pH 3–9; extreme pH may degrade coatings or ligands.
• Elution/regeneration: Acid/base wash, high-salt buffers, chelators (e.g., EDTA for metal-laden sorbents), or stronger solvents. Verify no adverse impact on the magnetic core or binder.
• Agitation: Ensure uniform suspension; magnetic stir bars or overhead stirring. For viscous media, increase mixing energy and allow longer magnetic settling or use stronger magnets.

Note: Expected yields and quantitative performance are system-dependent; validate analytically (HPLC/GC/ICP).

Safety and Handling

Authoritative safety data must be taken from the product SDS. The following fields are not provided in the Product Data and should be obtained from the SDS:

• Signal word: Not specified for this item; refer to SDS.
• H-statements / GHS classification / pictograms: Not specified for this item; refer to SDS.

General laboratory guidance for magnetic adsorbent solids (not item-specific):

• PPE: Wear lab coat, safety glasses, and appropriate gloves. Use a dust mask or work in a hood if handling fine powders to minimize inhalation.
• Handling: Avoid generating dust. Magnetic materials can be drawn to strong magnets and may affect magnetic media/instruments; keep away from sensitive devices and pacemakers. Use nonmagnetic tools when helpful.
• Incompatibilities: Specific chemical incompatibilities depend on surface chemistry and core material. Iron oxide cores are typically incompatible with strong complexants or harsh reducers/oxidizers that could degrade the core/coating. Verify with SDS/CoA.
• Spills: Avoid dry sweeping of fine powders; use HEPA vacuum or damp wipe to minimize dust. Collect with non-sparking, nonmagnetic tools.
• First aid (overview): If inhaled, move to fresh air; if on skin/eyes, rinse with water; if ingested, seek medical attention. Follow SDS for detailed measures.
• Waste: Dispose according to local regulations; consider that spent adsorbents may carry adsorbed hazardous contaminants.

Solvent Selection

This product is a solid-phase adsorbent; solvent selection pertains to dispersion, adsorption performance, and recovery. Item-specific compatibility is Not specified for this item; refer to CoA/Spec Sheet.

General/literature guidance (not item-specific):

• Polarity and dielectric: Adsorption depends on solvent polarity; ion-exchange/chelation usually favor polar protic/aprotic media (water, alcohols, MeCN, DMF), while hydrophobic/π–π surfaces engage better in less polar solvents (EtOAc, toluene, heptane) or mixed systems.
• Water content: For moisture-sensitive targets, use dry solvents. For ionic capture, moderate ionic strength may modulate selectivity and capacity.
• pH: Surface charge of many adsorbents varies with pH; control pH (buffers) to tune uptake and elution. Verify pH stability range for the specific material.
• Viscosity and mass transfer: Lower viscosity and adequate agitation improve kinetics. For packed operations, consider solvent viscosity/compatibility with the matrix to avoid channeling.
• Recovery: Magnetic retrieval is generally effective across a wide solvent range, but magnetic response can be attenuated in highly viscous media; provide sufficient settling time or magnetic field strength.

Comparison (general): Magnetic adsorbent vs nonmagnetic powders—magnetic enables tool-free phase separation, reducing filtration/centrifugation needs especially in turbid or high-solid slurries.

Storage and Reconstitution

• Storage conditions (from Product Data): Store at room temperature.
• Shipped in: Normal.
• Reconstitution: Not specified for this item; refer to CoA/Spec Sheet.

General guidance (not item-specific):

• Keep container tightly closed to minimize moisture uptake and contamination. If supplied as a dry powder, maintain desiccated conditions if recommended by the CoA.
• Avoid prolonged exposure to strong magnetic fields that could aggregate particles in slurries.
• If provided as an aqueous slurry, mix well before use to resuspend; for long-term storage, consult the CoA for any preservative content and do not freeze unless specified.
• Label containers that have adsorbed hazardous materials and segregate from virgin stock.

Research use only: As stated in Product Data.

Structure and Identity

Item-specific identity details are not provided for this product. Where values are missing, consult the current CoA/Spec Sheet.

• Product type: Magnetic adsorbent (generic solid phase incorporating magnetically responsive particles for separation workflows)
• Molecular formula: Not specified for this item; refer to CoA/Spec Sheet.
• Molecular weight: Not specified for this item; refer to CoA/Spec Sheet.
• SMILES: Not specified for this item; refer to CoA/Spec Sheet.
• InChIKey: Not specified for this item; refer to CoA/Spec Sheet.
• CAS: Not specified for this item; refer to CoA/Spec Sheet.
• CID: Not specified for this item; refer to CoA/Spec Sheet.

General/literature context (not item-specific):

• Many magnetic adsorbents comprise an iron oxide (e.g., magnetite Fe3O4 or maghemite γ‑Fe2O3) core, optionally coated (silica, polymer, carbon) and functionalized (ion-exchange, chelating, hydrophobic, affinity ligands).
• Typical structural features may include: inorganic magnetic core; protective shell; surface functional groups (–OH, –COOH, –NH2, thiols, chelators, or ligand tethers). 2D depictions often emphasize a core–shell motif with surface ligands providing the adsorption interface.

Note: Without item-specific characterization (FTIR, XPS, TEM, BET, ligand loading), the exact chemistry, particle size, and surface functionality of this SKU cannot be detailed here.

Synthetic Utility

As a class, magnetic adsorbents are valuable post-reaction tools rather than reagents. Item-specific functionality is Not specified for this item; refer to CoA/Spec Sheet.

General utilities in organic synthesis (not item-specific):

• Metal scavenging: Chelating/thiolated surfaces capture Pd, Ni, Cu, Ru after cross-coupling/hydrogenation. Rapid magnetic pull-down simplifies clarification before chromatography or crystallization.
• Acid/base capture: Aminated or sulfonated surfaces can quench acids/bases or remove ionic byproducts, reducing neutralization salt loads.
• Removal of byproducts: Hydrophobic or π-rich surfaces can adsorb aromatic impurities, dyes, or polymeric tars to improve color/UV profiles.
• Catalyst support and recycle: If bearing catalytic functions, magnetic particles enable easy separation and reuse, minimizing catalyst loss.
• Workflow integration: Applicable to batch or flow (with magnet-equipped separators or magnetizable packed beds for small scales).

Tips (general):

• Determine capacity empirically (mg impurity per g adsorbent) via small-scale isotherm tests.
• Sequence: Cool reaction, adjust solvent/pH, add adsorbent under stirring, allow contact, magnetically separate, then polish-filter if needed.

Target Specificity

Target specificity parameters (e.g., affinity ligand, ion-exchange type, selectivity profile) are not provided for this SKU.

• Item-specific target(s): Not specified for this item; refer to CoA/Spec Sheet.

General note (not item-specific): Magnetic adsorbents can be tailored to specific targets via ion-exchange (cation/anion), chelation (transition metals), hydrophobic/π–π interactions, or bioaffinity ligands. Without the surface chemistry, no selectivity claims can be made for this product.