{"id":1144,"date":"2026-09-18T13:17:29","date_gmt":"2026-09-18T05:17:29","guid":{"rendered":"https:\/\/brt-testing.com\/?post_type=product&#038;p=1144"},"modified":"2026-09-23T14:44:25","modified_gmt":"2026-09-23T06:44:25","slug":"brt-5900uv-uv-vis-spectrophotometer","status":"publish","type":"product","link":"https:\/\/brt-testing.com\/tr\/product\/brt-5900uv-uv-vis-spectrophotometer\/","title":{"rendered":"BRT-5900UV UV Vis Spectrophotometer"},"content":{"rendered":"<p><!-- 1. Executive Summary & Value Proposition --><\/p>\n<p>The <strong>BRT-5900UV UV Vis Spectrophotometer<\/strong> is a flagship double-beam research instrument featuring a Czerny-Turner (C-T) monochromator, an ultra-dense 1600 lines\/mm holographic grating, and a high-sensitivity photomultiplier tube (PMT) detector. Engineered for advanced analytical applications, pharmaceutical R&amp;D, high-precision chemical profiling, and life science research, it achieves an ultra-fine 0.05 nm wavelength resolution, exceptionally low stray light (\u22640.015%T), and superior baseline flatness (\u2264\u00b10.001 Abs) across the 190 nm to 900 nm spectral range with a tight 1.0 nm bandwidth, \u00b10.3 nm wavelength accuracy, and 0.1 nm wavelength repeatability.<\/p>\n<p>Driven by dual deuterium and 20W tungsten halogen light sources with adjustable switching points, this high-stability <strong>UV Vis Spectrophotometer<\/strong> guarantees high transmittance accuracy (\u00b10.3%T) and an extended dynamic range up to 4.000 Abs. Featuring an intuitive LCD dot-matrix screen, automatic startup wavelength calibration, internal storage for 200 datasets and standard curves, high-speed USB data export, and LPT parallel printing output, the 30 kg heavy-duty BRT-5900UV provides reproducible photometric, quantitative, and kinetic analysis.<\/p>\n<hr \/>\n<p><!-- 2. Applicable Measurement Modes & Methodologies --><\/p>\n<h3>UV Vis Spectrophotometer Measurement &amp; Analysis Capabilities<\/h3>\n<p>This photomultiplier-equipped double-beam spectrophotometer enables advanced laboratory testing across a wide range of analytical methodologies:<\/p>\n<table style=\"width: 100%; border-collapse: collapse;\">\n<thead>\n<tr style=\"background-color: #f8f9fa;\">\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Analysis Mode<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Methodology &amp; Operational Scope<\/th>\n<th style=\"border: 1px solid #ddd; padding: 8px; text-align: left;\">Primary Testing Application<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>High-Precision Photometric Testing<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Direct optical evaluations of Absorbance (-4.000 to 4.000 Abs) and Transmittance (0 to 200%T) at user-defined fixed wavelengths across 190\u2013900 nm with 0.05 nm resolution<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">High-density sample optical density determination, chemical raw material verification, and high-purity substance screening<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Quantitative Concentration Profiling<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Concentration determinations using factor coefficients ($C = KA + B$) or multi-point linear calibration curves with automatic regression equation storage<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Active pharmaceutical ingredient (API) quantification, trace water pollutant assays, and complex chemical compound assays<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>PC-Driven Kinetics &amp; Spectral Analysis<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Time-course dynamic tracking, multi-wavelength analysis, and full continuous spectral scanning using optional PC software via USB connection<\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Enzymatic reaction rates, dynamic compound degradation studies, protein\/nucleic acid characterization, and high-precision research assays<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p><!-- 3. Key Technological Advantages --><\/p>\n<h3>Technological Features of BRT-5900UV UV Vis Spectrophotometer<\/h3>\n<ul>\n<li><strong>1600 Lines\/mm Grating &amp; Photomultiplier Tube Detector<\/strong>\n<p>Combines a high-density 1600 L\/mm holographic grating with a premium photomultiplier tube (PMT) detector for high light sensitivity, minimal baseline noise, and ultra-low stray light (\u22640.015%T).<\/li>\n<li><strong>Ultra-Fine Wavelength Resolution (0.05 nm)<\/strong>\n<p>Features an ultra-fine optical readout resolution of 0.05 nm with \u00b10.3 nm wavelength accuracy and 0.1 nm repeatability, allowing crisp peak separation in complex chemical solutions.<\/li>\n<li><strong>Wide Dynamic Measuring Range (-4.000 to 4.000 Abs)<\/strong>\n<p>Supports an extended photometric linear range from -4.000 to 4.000 Abs, allowing direct testing of highly concentrated solutions without immediate dilution steps.<\/li>\n<li><strong>Superior Baseline Flatness (\u2264\u00b10.001 Abs) &amp; Low Drift<\/strong>\n<p>The heavy-duty double-beam optical architecture delivers excellent baseline flatness (\u2264\u00b10.001 Abs) and minimal drift, maintaining baseline stability during long research protocols.<\/li>\n<li><strong>Dual Light Sources with Adjustable Switching Points<\/strong>\n<p>Configured with an imported deuterium lamp and a 20W tungsten halogen lamp featuring customizable switching points to maximize lamp longevity and optical stability.<\/li>\n<li><strong>Dual Output Interfaces (USB PC Connection &amp; LPT Parallel Port)<\/strong>\n<p>Provides digital signal output and a USB port for software integration and data transfer, alongside an LPT parallel port for direct hard-copy printing.<\/li>\n<\/ul>\n<hr \/>\n<p><!-- 4. Technical Specifications --><\/p>\n<h3>Technical Specifications of UV Vis Spectrophotometer<\/h3>\n<table style=\"width: 100%; border-collapse: collapse;\">\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px; width: 35%;\"><strong>Product Model<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">BRT-5900UV High-Precision Double Beam UV Vis Spectrophotometer<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Optical System &amp; Monochromator<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Double Beam, C-T Monochromator, 1600 lines\/mm Holographic Grating<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Detector Type<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">High-Sensitivity Photomultiplier Tube (PMT) Sensor<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Wavelength Range &amp; Resolution<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">190 nm to 900 nm; Bandwidth: 1.0 nm; Wavelength Resolution: 0.05 nm<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Wavelength Accuracy &amp; Repeatability<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Accuracy: \u00b10.3 nm; Repeatability: 0.1 nm<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Photometric Range &amp; Stray Light<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">0 to 200%T, -4.000 to 4.000 Abs; Transmittance Accuracy: \u00b10.3%T; Stray Light: \u22640.015%T<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Baseline Flatness &amp; Drift<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">Baseline Flatness: \u2264\u00b10.001 Abs; Ultra-Low Baseline Drift<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Light Sources &amp; Sample Holder<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">20W Tungsten Halogen Lamp &amp; Deuterium Lamp; Fixed 2-Trench Sample Holder<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ddd; padding: 8px;\"><strong>Dimensions &amp; Instrument Weight<\/strong><\/td>\n<td style=\"border: 1px solid #ddd; padding: 8px;\">620 \u00d7 510 \u00d7 245 mm (L \u00d7 W \u00d7 H); Net Weight: 30 kg (66.14 lb)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<p><!-- 5. System Configuration & Package Components --><\/p>\n<h3>Standard Package Accessories Included<\/h3>\n<ul>\n<li><strong>Main Host Unit:<\/strong> BRT-5900UV Double Beam UV Vis Spectrophotometer (1 unit).<\/li>\n<li><strong>Sample Cell Holder:<\/strong> Fixed 2-Trench Cuvette Holder.<\/li>\n<li><strong>Quartz Cuvettes:<\/strong> 10 mm Standard Path Length Quartz Cuvettes (4 pcs for UV analysis).<\/li>\n<li><strong>Glass Cuvettes:<\/strong> 10 mm Standard Path Length Glass Cuvettes (4 pcs for Visible spectrum analysis).<\/li>\n<li><strong>Power &amp; Data Connectivity:<\/strong> Dual-Voltage AC Power Cord, USB Cable.<\/li>\n<li><strong>Documentation &amp; Software:<\/strong> Operating Manual, Quality Certificate, Warranty Card.<\/li>\n<\/ul>\n<hr \/>\n<p><!-- 6. Applications & Testing Workflow --><\/p>\n<h3>Testing Workflow &amp; Target Applications<\/h3>\n<p><strong>Standardized Testing Workflow:<\/strong><\/p>\n<ol>\n<li>Power on the BRT-5900UV; allow the system microcomputer to perform automatic lamp ignition, system zeroing, and startup wavelength calibration.<\/li>\n<li>Select Photometric or Quantitative testing modes via the LCD menu.<\/li>\n<li>Place a reference blank in the reference slot of the 2-trench holder to perform 0A \/ 100%T baseline zeroing across the target spectrum.<\/li>\n<li>Place the sample in the testing beam path to measure absorbance up to 4.000 Abs or calculate concentration values.<\/li>\n<li>Store datasets (up to 200 entries) in internal memory, transmit via USB to optional PC software for kinetics and scanning, or print hard copies via the LPT parallel port.<\/li>\n<\/ol>\n<p><strong>Target Customer Applications:<\/strong><\/p>\n<ul>\n<li>Advanced pharmaceutical R&amp;D laboratories, active pharmaceutical ingredient (API) testing centers, and QA\/QC facilities.<\/li>\n<li>High-sensitivity environmental monitoring agencies (trace water pollutants, heavy metals, and COD assays).<\/li>\n<li>Molecular biology research institutes, biochemistry labs, and university chemistry departments.<\/li>\n<li>Chemical engineering centers, food purity inspection bays, and material science laboratories.<\/li>\n<\/ul>\n<hr \/>\n<p><!-- 7. Frequently Asked Questions (FAQ) --><\/p>\n<h3>UV Vis Spectrophotometer FAQ<\/h3>\n<h4>Q1: What are the main benefits of using a photomultiplier tube (PMT) detector in the BRT-5900UV?<\/h4>\n<p><strong>A:<\/strong> Photomultiplier tube detectors offer higher sensitivity and signal-to-noise ratios compared to standard photocells. This enables high optical precision when measuring low-transmittance or highly absorbing samples, achieving stray light performance as low as \u22640.015%T.<\/p>\n<h4>Q2: How does the 1600 lines\/mm grating improve optical performance?<\/h4>\n<p><strong>A:<\/strong> The high-density 1600 lines\/mm holographic grating delivers finer dispersion of light, enabling an ultra-fine wavelength resolution of 0.05 nm and a narrow 1.0 nm bandwidth for identifying close absorption peaks.<\/p>\n<h4>Q3: What analytical features are unlocked by connecting optional PC software via USB?<\/h4>\n<p><strong>A:<\/strong> Connecting the instrument to PC software unlocks continuous full-spectrum wavelength scanning, real-time kinetic reaction rate monitoring, multi-wavelength testing, and customized GLP-compliant laboratory report generation.<\/p>","protected":false},"excerpt":{"rendered":"<p><b data-path-to-node=\"7,0\" data-index-in-node=\"0\">BRT-5900UV UV Vis Spectrophotometer<\/b> is a 30 kg research-grade double-beam instrument featuring a photomultiplier tube (PMT) detector, 1600 L\/mm holographic grating, 190\u2013900 nm range, 1.0 nm bandwidth, and 0.05 nm resolution. Delivering \u22640.015%T stray light, \u2264\u00b10.001 Abs baseline flatness, and a -4.000 to 4.000 Abs dynamic range, it includes 200-dataset memory, 4 quartz\/4 glass cuvettes, USB interface, and LPT printer support for high-precision analytical research.<\/p>","protected":false},"featured_media":1146,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[117],"product_cat":[21],"product_tag":[],"class_list":["post-1144","product","type-product","status-publish","has-post-thumbnail","product_brand-brt-testing","product_cat-uv-vis-spectrophotometer","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/brt-testing.com\/tr\/wp-json\/wp\/v2\/product\/1144","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brt-testing.com\/tr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/brt-testing.com\/tr\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/brt-testing.com\/tr\/wp-json\/wp\/v2\/comments?post=1144"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/brt-testing.com\/tr\/wp-json\/wp\/v2\/media\/1146"}],"wp:attachment":[{"href":"https:\/\/brt-testing.com\/tr\/wp-json\/wp\/v2\/media?parent=1144"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/brt-testing.com\/tr\/wp-json\/wp\/v2\/product_brand?post=1144"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/brt-testing.com\/tr\/wp-json\/wp\/v2\/product_cat?post=1144"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/brt-testing.com\/tr\/wp-json\/wp\/v2\/product_tag?post=1144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}