{"id":9263,"date":"2023-07-15T10:30:45","date_gmt":"2023-07-15T10:30:45","guid":{"rendered":"https:\/\/lasany.org\/?post_type=product&#038;p=9263"},"modified":"2026-07-31T09:34:31","modified_gmt":"2026-07-31T09:34:31","slug":"fluorescence-spectrophotometer-model-no-li-4100","status":"publish","type":"product","link":"https:\/\/lasany.org\/vi\/product\/fluorescence-spectrophotometer-model-no-li-4100\/","title":{"rendered":"Fluorescence Spectrophotometer Model No &#8211; LI-4100\u00a0"},"content":{"rendered":"<p>The <strong>Lasany LI-4100 Fluorescence Spectrophotometer<\/strong> is a reliable, entry-to-mid-range molecular luminescence instrument designed for laboratories that need accurate fluorescence measurement without the complexity of advanced multi-mode research systems. Built around a high-stability 150W Hamamatsu Xenon lamp and a C-T diffraction grating emission monochromator, the LI-4100 delivers consistent, reproducible fluorescence readings across an emission wavelength range of 200\u2013900 nm. With dual measurement modes, a six-stage adjustable response time, and a normalized fluorescence comparison feature, it is an ideal fluorescence spectrophotometer for teaching laboratories, quality control facilities, clinical diagnostics, pharmaceutical testing, and environmental analysis \u2014 offering dependable performance at an accessible price point. Certified to ISO 9001:2015 and CE marked, the LI-4100 reflects Lasany International&#8217;s commitment to quality, affordability, and laboratory-grade reliability.<\/p>\n<h3><strong>Key Features<\/strong><\/h3>\n<ul>\n<li><strong>Dual measurement modes<\/strong> \u2014 fluorescence intensity mode and luminous intensity mode, with fluorescence scanning, kinetic determination, and quantitative analysis all operable under fluorescence intensity mode<\/li>\n<li><strong>High-performance sensitivity<\/strong> \u2014 S\/N \u2265150 (P-P) at 365nm exciting wavelength using a 1cm quartz fluorescence cuvette, enabling reliable measurement of low-concentration samples<\/li>\n<li><strong>150W Hamamatsu Xenon lamp<\/strong> \u2014 long-life, high-stability light source ensuring consistent spectral coverage and measurement reproducibility<\/li>\n<li><strong>C-T diffraction grating emission monochromator<\/strong> \u2014 delivers precise emission wavelength selection and reliable spectral separation<\/li>\n<li><strong>Interference optical filter for excitation<\/strong> \u2014 reduces stray light and enhances measurement accuracy for sensitive fluorescence applications<\/li>\n<li><strong>Normalized fluorescence value feature<\/strong> \u2014 allows direct comparison of fluorescence results across different measurement sessions and instruments<\/li>\n<li><strong>Six-stage adjustable response time (0.1\u20134s)<\/strong> \u2014 flexible sensitivity settings for various sample types and signal strengths<\/li>\n<li><strong>USB 2.0 data transmission<\/strong> for convenient PC connectivity and data export<\/li>\n<li><strong>Optional accessories available<\/strong> \u2014 single cell holder, fluorescence sample accessories, and excitation wavelength optical filters for extended measurement capabilities<\/li>\n<\/ul>\n<h3><strong>Technical Specifications<\/strong><\/h3>\n<table>\n<thead>\n<tr>\n<th>Parameter<\/th>\n<th>Specification<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Model<\/td>\n<td>LI-4100<\/td>\n<\/tr>\n<tr>\n<td>Light Source<\/td>\n<td>Hamamatsu 150W Xenon Lamp<\/td>\n<\/tr>\n<tr>\n<td>Exciting Optical Filters<\/td>\n<td>Interference Optical Filter<\/td>\n<\/tr>\n<tr>\n<td>Emission Monochromator<\/td>\n<td>C-T Diffraction Grating<\/td>\n<\/tr>\n<tr>\n<td>Emission Wavelength<\/td>\n<td>200\u2013900 nm<\/td>\n<\/tr>\n<tr>\n<td>Emission Bandwidth<\/td>\n<td>10 nm<\/td>\n<\/tr>\n<tr>\n<td>Sensitivity<\/td>\n<td>S\/N \u2265150 (P-P)<\/td>\n<\/tr>\n<tr>\n<td>Linearity<\/td>\n<td>\u22650.995<\/td>\n<\/tr>\n<tr>\n<td>Stability<\/td>\n<td>Better than 1.5% \/ 10 min<\/td>\n<\/tr>\n<tr>\n<td>Response Time<\/td>\n<td>0.1\u20134s (6 Stages Adjustable)<\/td>\n<\/tr>\n<tr>\n<td>Fluorescence Display Value<\/td>\n<td>0.00\u2013600.00<\/td>\n<\/tr>\n<tr>\n<td>Data Transmission<\/td>\n<td>USB 2.0<\/td>\n<\/tr>\n<tr>\n<td>Power<\/td>\n<td>220V \u00b122V, 50Hz \u00b11Hz<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3><strong>Applications<\/strong><\/h3>\n<p>The LI-4100 Fluorescence Spectrophotometer is suited to a wide range of laboratory applications where reliable fluorescence detection and quantification are required. In pharmaceutical quality control, it supports the analysis of fluorescent drug compounds, excipients, and trace impurities. Clinical and biochemical laboratories use it for enzyme activity assays, protein quantification, and biological marker analysis. Environmental monitoring labs rely on it for detecting organic pollutants, dyes, and contaminants in water samples. In food safety testing, the LI-4100 is effective for quantifying vitamins, detecting contaminants such as aflatoxin, and analysing fluorescent additives. Its kinetic determination capability also makes it valuable for reaction rate studies in biochemistry and chemistry teaching laboratories.<\/p>\n<h3><strong>Benefits of the LI-4100<\/strong><\/h3>\n<p>The LI-4100 occupies a practical, well-defined position in Lasany&#8217;s fluorescence spectrophotometer range \u2014 delivering the core capabilities laboratories need most, in a straightforward, easy-to-operate instrument. Its dual-mode operation means a single instrument can serve both routine fluorescence intensity measurements and luminous intensity analysis, reducing the need for multiple instruments in smaller laboratories. The normalized fluorescence comparison feature is particularly valuable in multi-operator or multi-session environments, where result consistency across different measurement runs is critical for data integrity. The six-stage adjustable response time gives operators flexibility to optimize signal detection for both strong and weak fluorescence emitters, while the long-life Hamamatsu Xenon lamp minimizes running costs and unplanned downtime. For laboratories seeking a capable, low-maintenance fluorescence spectrophotometer with a proven optical platform, the LI-4100 delivers outstanding value.<\/p>\n<h3><strong>Why Choose Lasany International<\/strong><\/h3>\n<p>Lasany International is an ISO 9001:2015 certified and CE marked laboratory instrument manufacturer with over two decades of experience supplying precision analytical instruments to pharmaceutical, research, environmental, and academic institutions across India and internationally. The LI-4100 is backed by Lasany&#8217;s reliable after-sales support network and is available with a range of optional accessories that extend its measurement capabilities as laboratory needs evolve. Whether you are equipping a teaching laboratory, a QC facility, or a diagnostic centre, the LI-4100 provides a trusted, cost-effective entry point into professional fluorescence spectrophotometry.<\/p>\n<p><strong>Get in Touch with Us: \u2013<\/strong><\/p>\n<p>Panchkula, Haryana<br \/>\nWebsite: https:\/\/lasany.org\/<br \/>\nAddress: SCF-132, Sector 17, Panchkula, Haryana 134109<br \/>\nEmail:- lasanyinternationalindia@gmail.com,sales@lasanyspectrophotometers.com<br \/>\nOnline Support:- 9888911439 \/ 9803017479<\/p>\n<p>If you are looking for laboratory, analytical, and medical products, then <a href=\"https:\/\/lasany.org\/\"><strong>Lasany International<\/strong><\/a> is the perfect choice for you<\/p>\n","protected":false},"excerpt":{"rendered":"<p class=\"font-claude-response-body break-words whitespace-normal\">The Lasany LI-4100 Fluorescence Spectrophotometer delivers dependable molecular luminescence analysis with a long-life 150W Hamamatsu Xenon lamp, C-T diffraction grating monochromator, and an emission wavelength range of 200\u2013900nm. Featuring dual measurement modes \u2014 fluorescence intensity and luminous intensity \u2014 plus six-stage adjustable response time and S\/N \u2265150 (P-P) sensitivity, it simplifies accurate detection of even low-concentration samples. The normalized fluorescence comparison feature ensures consistent, reproducible results across measurement sessions. Perfect for pharmaceutical QC, clinical diagnostics, food safety, and teaching laboratories seeking a capable, low-maintenance fluorescence instrument. ISO 9001:2015 and CE certified.<\/p>\n<p class=\"font-claude-response-body break-words whitespace-normal\"><strong>Contact Us today to request a quote.<\/strong><\/p>\n","protected":false},"featured_media":11246,"comment_status":"closed","ping_status":"closed","template":"","meta":{"pgc_meta":"","_eb_attr":"","inline_featured_image":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"product_cat":[617,643,94],"product_tag":[],"class_list":["post-9263","product","type-product","status-publish","has-post-thumbnail","product_cat-spectrophotometer","product_cat-fluorescence-spectrophotometer","product_cat-laboratory-equipment","first","instock","virtual","purchasable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Using a Fluorescence Spectrophotometer to Measure 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