{"id":57122,"date":"2025-07-01T18:32:46","date_gmt":"2025-07-01T10:32:46","guid":{"rendered":"https:\/\/machinedquartz.com\/claude\/product\/quartz-20mm-fluorescent-atomic-gas-chamber-standard-80-four-way-light-1pc-ea-c204ws\/"},"modified":"2026-03-26T17:54:59","modified_gmt":"2026-03-26T09:54:59","slug":"quartz-20mm-fluorescent-atomic-gas-chamber-molded-83-four-way-light-1pc-ea-c204ws","status":"publish","type":"product","link":"https:\/\/machinedquartz.com\/claude\/product\/quartz-20mm-fluorescent-atomic-gas-chamber-molded-83-four-way-light-1pc-ea-c204ws\/","title":{"rendered":"Quartz 20mm Fluorescent Atomic Gas \nChamber,  Molded 83, Four-Way Light, , 1pc\/ea, C204WS"},"content":{"rendered":"<div style=\"margin-bottom:24px\">\n<p>The C204WS is a quartz <strong>fluorescent atomic gas chamber<\/strong> with <strong>20mm path length<\/strong> and <strong>four-way light<\/strong> optical configuration &mdash; all four vertical faces are polished to optical grade, enabling both standard UV-Vis absorbance and 90&deg; fluorescence detection. Fabricated using <a href=\"\/fabrication-method-of-cuvettes\/\" target=\"_blank\" rel=\"noopener\">Molded 83<\/a> (&gt;83% transmittance) &mdash; precision-molded from a single piece of quartz, eliminating adhesive joints entirely. Features a completely unique cube-shaped atomic gas chamber design (24mm x 24mm x 53mm total height) with a single glass tube extending vertically from the top, purpose-built for atomic spectroscopy gas containment with four-way optical access.<\/p>\n<\/div>\n<table class=\"product-specs\" style=\"width:100%;border-collapse:collapse;margin-bottom:24px\">\n<thead>\n<tr>\n<th colspan=\"4\" style=\"background:#1a2238;color:#fff;padding:10px 14px;text-align:left;font-size:15px\">Technical Specifications &mdash; Fluorescent Atomic Gas Chamber<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Material<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\">Quartz<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">SKU<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\">C204WS<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Path Length<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\"><strong>20mm<\/strong><\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Internal Volume<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\">&mdash;<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Optical Windows<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\">4 (Four-Way Light)<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Fabrication<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\"><a href=\"\/fabrication-method-of-cuvettes\/\" target=\"_blank\" rel=\"noopener\">Molded 83<\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Transmittance<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\">&gt;83%<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Wavelength<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\">190&ndash;2500 nm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Exterior Dimensions<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\">24 &times; 24 &times; 53 mm<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Interior Dimensions<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\">20 &times; 20 &times; 49 mm<\/td>\n<\/tr>\n<tr>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Closure<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\">None (Open Top)<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;font-weight:600;background:#f8f9fa;width:18%\">Package<\/td>\n<td style=\"padding:8px 12px;border:1px solid #e0e0e0;width:32%\">1pc\/ea<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 style=\"color:#1a2238;border-left:4px solid #1a73e8;padding-left:12px;margin:24px 0 12px\">Spectroscopy Applications<\/h3>\n<div style=\"display:grid;grid-template-columns:1fr 1fr;gap:6px 20px;margin-bottom:24px\">\n<div style=\"padding:4px 0\"><span style=\"color:#1a73e8;font-weight:600\">&#9670;<\/span> <strong>UV-Vis Absorbance Spectroscopy<\/strong> &mdash; quantitative concentration, kinetics, Beer&ndash;Lambert studies<\/div>\n<div style=\"padding:4px 0\"><span style=\"color:#1a73e8;font-weight:600\">&#9670;<\/span> <strong>Fluorescence Spectroscopy<\/strong> &mdash; 90&deg; excitation\/emission for fluorescent probes, dyes, and quantum dots<\/div>\n<div style=\"padding:4px 0\"><span style=\"color:#1a73e8;font-weight:600\">&#9670;<\/span> <strong>DNA \/ RNA Quantification<\/strong> &mdash; nucleic-acid purity checks at 260\/280 nm<\/div>\n<div style=\"padding:4px 0\"><span style=\"color:#1a73e8;font-weight:600\">&#9670;<\/span> <strong>Protein Assays<\/strong> &mdash; Bradford, BCA, Lowry, and direct A280 measurements<\/div>\n<div style=\"padding:4px 0\"><span style=\"color:#1a73e8;font-weight:600\">&#9670;<\/span> <strong>Enzyme Kinetics<\/strong> &mdash; real-time substrate conversion and inhibition studies<\/div>\n<div style=\"padding:4px 0\"><span style=\"color:#1a73e8;font-weight:600\">&#9670;<\/span> <strong>Water Quality &amp; Environmental<\/strong> &mdash; COD, nitrate, phosphate, heavy-metal colorimetric tests<\/div>\n<div style=\"padding:4px 0\"><span style=\"color:#1a73e8;font-weight:600\">&#9670;<\/span> <strong>Pharmaceutical QC<\/strong> &mdash; dissolution testing, drug concentration, stability monitoring<\/div>\n<div style=\"padding:4px 0\"><span style=\"color:#1a73e8;font-weight:600\">&#9670;<\/span> <strong>Chemical Reaction Monitoring<\/strong> &mdash; reaction progress tracking via absorbance changes<\/div>\n<\/div>\n<h3 style=\"color:#1a2238;border-left:4px solid #1a73e8;padding-left:12px;margin:24px 0 12px\">Why Four-Way Light?<\/h3>\n<p style=\"margin-bottom:24px\">Four-way light cuvettes have all four vertical faces polished to optical grade, enabling both standard absorbance measurements and 90&deg; fluorescence detection geometry. The excitation beam enters through one face while emission is collected at right angles through an adjacent face &mdash; the standard configuration required by fluorimeters and spectrofluorometers.<\/p>\n<h3 style=\"color:#1a2238;border-left:4px solid #1a73e8;padding-left:12px;margin:24px 0 12px\">Why Molded 83?<\/h3>\n<p style=\"margin-bottom:24px\">Molded 83 uses monolithic fused-quartz construction &mdash; no adhesive joints &mdash; delivering &gt;83% UV transmittance from 200&ndash;2500 nm. Because there are no glue seams, the cell withstands all common laboratory solvents, concentrated acids, and bases (avoid HF). This fabrication is ideal for demanding analytical workflows where chemical resistance, long service life, and maximum optical clarity are priorities.<\/p>\n<div style=\"background:#eaf4fc;border-left:4px solid #1a73e8;padding:14px 18px;margin-bottom:24px;border-radius:0 6px 6px 0\">\n<strong>Usage Tips<\/strong><\/p>\n<ul style=\"margin:8px 0 0 18px;padding:0\">\n<li>Rinse with a compatible solvent (e.g., ethanol or the measurement solvent) before first use to remove any residual particles.<\/li>\n<li>Do not use abrasive materials or brushes on the polished optical faces &mdash; wipe gently with lens tissue.<\/li>\n<li>Withstands all common laboratory solvents, concentrated acids, and bases. Avoid HF (hydrofluoric acid).<\/li>\n<li>Store in the original protective case to prevent scratches on the optical windows.<\/li>\n<li>For baseline correction, fill with your reference solvent, cap the cuvette, and run a blank before sample measurements.<\/li>\n<\/ul>\n<\/div>\n<div style=\"background:#fef9e7;border-left:4px solid #f0c040;padding:14px 18px;margin-bottom:24px;border-radius:0 6px 6px 0\">\n<strong>Custom Orders<\/strong><br \/>\nNeed a non-standard path length, volume, window configuration, or closure type? We manufacture quartz cuvettes to your exact specifications. <a href=\"\/contact\/\" target=\"_blank\" rel=\"noopener\">Request a custom quote<\/a>.\n<\/div>\n<div style=\"background:#f5f5f5;padding:12px 16px;border-radius:6px;font-size:13px;color:#666;margin-bottom:24px\">\n<strong>Disclaimer:<\/strong> Specifications are nominal values measured under standard laboratory conditions. Actual transmittance may vary slightly with wavelength and sample conditions. Images are representative; minor cosmetic variations between production batches are normal and do not affect optical performance.\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Quartz 20mm fluorescent atomic gas chamber, Molded 83 (&gt;83% transmittance). Four-Way Light. 190&ndash;2500 nm. 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