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Rheumatoid Factor Positive Plasma Interference Molecular Depot
Rheumatoid Factor Positive Plasma Interference Molecular Depot

Rheumatoid Factor Positive Plasma

$4,995.00

    Catalog #: S2010001G (Bulk)

    Rheumatoid Factor Positive Plasma consists of defibrinated human plasma positive for Rheumatoid Factor (≥250 IU/mL). This product is readily available in volumes ranging from a few mL to tens of Liters. Titer is assigned with the RF Latex method. All units have tested negative for infectious agents. This product can be used as molecular tool for various in vitro research and biochemical applications. Custom bulk orders of this product are available upon request.

    Products are for in vitro research use only (RUO).

    Live Inquiry about this product via:

    Email: info@bluetigerscientific.com

    Text/SMS: (833) 928-4437 Mon–Fri, (8 am – 8 pm PST)

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Manufacturer Warranty

All products are covered by manufacturer warranty

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What's Included

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VR Headset

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2 Touch Controllers

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Charging Cable

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Power Adapter

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Rheumatoid Factor Positive Plasma. 5 different clones are available.

Clone Catalog #
1 L S2010001G-1L
500 mL S2010001G-500ML
1 mL S2010001G-1ML
5 mL S2010001G-5ML
50 mL S2010001G-50ML
Catalog number: S2010001G-1L
S2010001G-500ML
S2010001G-1ML
S2010001G-5ML
S2010001G-50ML
Lot number: Batch dependent
Expiration date: Batch depdendent
Titer: ≥ 250 IU/mL
Package Size: Bulk (1 mL to 10 L)
Appearance: Slightly turbid
Species: Human
Matrix: Human plasma
Storage: -20°C. Avoid repeated freeze-thaw.
Other names: RF, rheumatoid arthritis factor, rheumatoid arthritis antibody
Keywords: Rheumatoid Factor, RF, rheumatoid arthritis factor, rheumatoid arthritis antibody, RF positive plasma, RF positive control, Rheumatoid Factor Positive Control

Rheumatoid Factor Positive Plasma is a biotechnology-grade human plasma sample containing elevated levels of rheumatoid factor (RF), a key autoantibody associated with rheumatoid arthritis and other autoimmune conditions. With a titer of ≥250 IU/mL, this reagent is ideal for use in assay development, interference testing, and clinical research focused on autoimmune diagnostics. Available in five different package sizes—from 1 mL to 1 L—this product offers flexibility for both small-scale experiments and bulk manufacturing needs.

RF can interfere with immunoassays that rely on IgG detection, making this plasma matrix essential for validating assay specificity and robustness. Its slightly turbid appearance reflects the native protein content, and its human origin ensures physiological relevance in clinical assay environments. Researchers working on ELISA, CLIA, or nephelometric platforms will find this reagent valuable for calibrating RF-positive controls, simulating patient samples, and troubleshooting false positives. Filtered and stored at –20°C, it maintains antibody integrity and is compatible with automated and manual workflows. Whether you're developing a diagnostic kit or conducting autoimmune biomarker research, this plasma provides the reliability and consistency required for high-confidence results.

Key benefits:

  • Contains ≥250 IU/mL rheumatoid factor for autoimmune assay development

  • Available in five package sizes to suit various research and production needs

  • Human plasma matrix ensures physiological relevance

  • Ideal for interference testing, RF calibration, and control validation

  • Stored at –20°C to preserve antibody activity and sample integrity

Products are for in vitro research use only (RUO).

References

  • Hollander, J. L. (1968). Rheumatoid Arthritis, Rheumatoid Factor, and Gamma G Globulin Fragments. Annals of Internal Medicine, 68(5), 1195.
  • Pappas, D. A., and Bathon, J. M. (2009). Treatment of Rheumatoid Arthritis: Tumor Necrosis Factor Inhibitors. Rheumatoid Arthritis, 337–349.
  • Shingu, M., Ezaki, I., and Nobunaga, M. (1988). Complement-activating properties of immune complexes are suppressed by IgM rheumatoid factor and enhanced by IgG rheumatoid factor. Rheumatology International, 8(3), 95–100.
  • Vaughan, J. H. (1993). Pathogenetic concepts and origins of rheumatoid factor in rheumatoid arthritis. Arthritis and Rheumatism, 36(1), 1–6.
  • Xing Q, Fu L, Yu Z, Zhou X. Efficacy and Safety of Integrated Traditional Chinese Medicine and Western Medicine on the Treatment of Rheumatoid Arthritis: A Meta-Analysis. Evid Based Complement
  • Alternat Med. 2020 Apr 2;2020:4348709.
    Raine C, Austin K, Giles I. Mechanisms determining the amelioration of rheumatoid arthritis in pregnancy: A systematic review. Semin Arthritis
  • Rheum. 2020 Mar 19. pii: S0049-0172(20)30079-2.
  • Toussirot E. The Interrelations between Biological and Targeted Synthetic Agents Used in Inflammatory Joint Diseases, and Obesity or Body Composition. Metabolites. 2020 Mar 13;10(3). pii: E107.
  • Ishikawa Y, Terao C. The Impact of Cigarette Smoking on Risk of Rheumatoid Arthritis: A Narrative Review. Cells. 2020 Feb 19;9(2). pii: E475.
  • Lin YJ, Anzaghe M, Schülke S. Update on the Pathomechanism, Diagnosis, and Treatment Options for Rheumatoid Arthritis. Cells. 2020 Apr 3;9(4). pii: E880.
  • Capone A, Volpe E. Transcriptional Regulators of T Helper 17 Cell Differentiation in Health and Autoimmune Diseases. Front Immunol. 2020 Mar 12;11:348.
     

    Terms & Conditions

    Blue Tiger Scientific is an independent third-party distributor of select products manufactured by Molecular Depot LLC. By purchasing from bluetigerscientific.com, you (“the Customer”) agree to the following terms, adapted from Molecular Depot’s original conditions:

    Product Use & Eligibility
    Products are for in vitro research use only (RUO). They are not intended for human or animal use, diagnosis, therapy, resale to consumers, or residential delivery. Sales are limited to verified business addresses.

    Payment Terms
    All purchases are prepaid and non-refundable once confirmed. Pricing is in USD and subject to change without notice.

    Purchase Orders
    Confirmed orders are final and may not be canceled or refunded unless authorized in writing.

    Limitation of Liability
    Blue Tiger Scientific and Molecular Depot LLC are not responsible for any damages resulting from product use or misuse.

    Waiver of Claims
    By ordering, you waive all claims arising from use of Molecular Depot products.

    Shipping & Handling
    Shipping is calculated at checkout. A minimum 27% handling fee applies to each order.

    Delivery Estimates All delivery timelines are estimates and not guaranteed. FedEx service levels are subject to operational delays, weather disruptions, and regional restrictions.

    FedEx Pickup Cutoff Orders submitted after the daily FedEx pickup window may not ship until the next available pickup day.

    Shipping Exceptions FedEx may impose restrictions or delays due to package size, weight, destination, or service availability. Blue Tiger Scientific is not liable for delays beyond our control.

    Weekend & Holiday Handling Orders placed on weekends or holidays will be processed on the next business day.

    Returns & Refunds
    Returns must be requested within 30 days through Blue Tiger Scientific. Refunds are only issued for shipping errors or verified defects, and processed within 45 business days if approved. Customers are responsible for return shipping costs unless otherwise stated. Refunds will exclude original shipping fees paid at checkout.

    Warranty Disclaimer
    All products are provided "as-is" with no warranties. Warranty issues are handled by the manufacturer.

    Safety Guidelines
    Always consult the product’s SDS. Products must not be ingested, inhaled, or come into contact with skin or eyes unless specified.

    Legal Use Compliance
    Products must not be used in violation of any law—local, state, federal, or international.

    Accuracy of Orders
    Customers are responsible for verifying all order details before submission.

    Changes or Cancellations
    All changes must be in writing and approved. Cancellations may result in fees for materials, labor, or third-party costs.

    Quality System (MD Levels)
    Molecular Depot’s MD-Quality System includes:

    MD 1000: Non-regulated use, no change notification

    MD 2000: Non-regulated use, limited change notification

    MD 3000: Regulated use, enhanced quality standards

    Delivery & Claims
    Orders may ship in parts. Claims for shortages or defects must be submitted within 2 days of receipt. Delivery dates are estimates only.

    Extended Payment Terms
    Payment is due within 30 days unless agreed otherwise. A 5% weekly penalty applies to late payments. Blue Tiger Scientific reserves discretion on payment application.

    Retention of Title
    Ownership remains with Blue Tiger Scientific or Molecular Depot LLC until payment is complete. Goods must be stored separately and labeled until paid in full.

    Intellectual Property
    No rights to manufacturing processes or IP are transferred. Blue Tiger Scientific is not liable for IP-related claims.

    Force Majeure
    Neither party is liable for delays or failures caused by uncontrollable events (e.g., weather, regulations, supply disruptions).

    Manufacturing Access
    Product purchase does not grant access to proprietary manufacturing documents or methods.

    Resale Prohibition
    Products cannot be resold without written approval from Molecular Depot LLC. Blue Tiger Scientific enforces this restriction.

    Governing Law
    Terms are governed by California and U.S. law. All disputes fall under U.S. jurisdiction.

Product Resources:

Manual Manual
Brochure Brochure

Copy of Technical Specifications

FeatureDetails
Viewing Head Siedentopf type trinocular head, inclined at 30°, Interpupillary adjustment 53mm to 75mm, graduated diopter on left eyetube (30mm I.D. eyetubes)
Eyepieces SWH10X Widefield high eyepoint eyepiece, Field No. 22, tube O.D. 30.0 mm
Nosepiece Quintuple
Quintuple LWD Planachromat Phase 10x, 20x
Condenser TC Condenser N.A. 0.30, W.D. 73.0mm
Stage180mm(X) x 245mm(Y) plain stage with replaceable glass insert with 45mm opening, Glass Stage plate insert
IlluminationKoehler without iris, with phase slider, 3W LED
WarrantyLIMITED LIFETIME WARRANTY

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