Human Plasma, Rheumatoid Factor (RF), Titer >1000 IU/ml Unit Size:50 ml Each lot is screened and

Each lot is screened and tested to confirm RF positivity at the indicated titer threshold

This product is verified to have RF titers exceeding 200 IU/mL

This processed human serum offers consistent performance across different batches

Ultra-Low Homocysteine: a purified human serum with minimal traces of homocysteine

Ultra-Low Hormones & Steroids

Human Plasma, Rheumatoid Factor (RF), Titer >1000 IU/ml Unit Size:50 ml Each lot is screened andGolden West BioSolutions Human Plasma, Rheumatoid Factor (RF) Positive is a disease state plasma derived from donors confirmed to have elevated RF levels, commonly associated with autoimmune conditions such as rheumatoid arthritis. This biologically sourced material is ideal for use in assay development, quality control, and diagnostic research involving autoantibodies and inflammatory markers. The plasma is collected under stringent regulatory