Vitamin D Analysis

Vitamin D deficiency, which results from inadequate nutritional intake of vitamin D and inadequate sunlight exposure, leads to bone softening diseases such as rickets in children and osteomalacia and osteoporosis in adults. Vitamin D has also been linked to many other conditions, including certain cancers, type 1 diabetes, multiple sclerosis, tuberculosis, Alzheimer's disease, psoriasis, and all-cause mortality. With the increased attention on health issues related to vitamin D, the demand for vitamin D testing has risen dramatically in the past few years.

The analysis of 25-hydroxyvitamin D (25OHD) is one of the most accurate ways to determine the level of vitamin D in the body. Warnex uses high performance liquid chromatography (HPLC) combined with mass spectrometry (MS/MS) to measure 25-hydroxyvitamin D2 and D3 in human blood plasma.

Warnex has received certification from DEQAS for the analysis of 25-hydroxyvitamin D (view certificate). Warnex participated in the international "External Quality Assessment Scheme" (DEQAS) and consistently demonstrated that its HPLC/MS/MS method is reliable with respect to absolute values, assay linearity, as well as assay precision, and can be used with confidence by clinicians to assess vitamin D deficiency in patients.