High-Quality Quartz Microplate 96 Well Manufacturers & Suppliers

Fused quartz is melted from naturally occurring high-purity crystalline quartz sand (SiO₂ ≥ 99.99%), making it cost-effective and structurally durable with superior thermal resistance up to 1,100 °C. Synthetic fused silica is created using chemical precursors (e.g., SiCl₄), resulting in exceptional purity with virtually no trace metal contamination (< 1 ppm total) and enhanced transmission down to deep ultraviolet vacuum wavelengths (170 nm–190 nm). Southeast Quartz supplies both grades tailored to budget and optical precision requirements.

Because fused quartz is chemically inert and thermally stable, cleaning protocols can involve immersion in concentrated nitric acid or aqua regia to eliminate organic and bio-metallic residues. Plates can also be cleaned via ultrasonication in specialized non-ionic laboratory detergents, followed by ultrapure deionized water rinses and hot-air or autoclave drying up to several hundred degrees Celsius without warping. Hydrofluoric acid (HF) and hot concentrated phosphoric solutions must be avoided, as they etch the quartz optical surface.

Standard production maintains ANSI/SLAS footprint footprints of approximately 127.76 mm × 85.48 mm. Well depths typically range between 10 mm and 14 mm with standard working volumes of 300 to 360 μL per well. Bottom thicknesses can be ground and polished to standard coverslip dimensions (0.17 mm / No. 1.5H) for high-numerical-aperture confocal microscopy, or 1.0 mm–2.0 mm for standard spectrophotometric readers. Dimensional tolerances can be held to ±0.05 mm on overall geometry and planarity flatnesses down to ≤0.005 mm across the entire optical window.

Yes. To minimize well-to-well optical crosstalk in fluorescence and luminescence assays, we manufacture composite designs where optical quartz bottom plates are direct-bonded to opaque black or white quartz upper matrices, or to chemically inert PEEK/aluminum framing according to your OEM assay specifications.

Standard ANSI/SLAS quartz 96-well microplates with flat bottoms are often available from inventory or ready within 1 to 2 weeks. Custom geometries—such as bespoke well pitches, ultra-thin polished bases, or non-standard outside flanges—typically require 2 to 3 weeks for engineering validation, CNC tooling, cleanroom diffusion bonding, and helium leak/surface interferometry testing.