SIELC’s Alltesta™ Analyzer is an affordable HPLC analytical system that provides both scientific and educational environments with a convenient, simple solution for measuring small and trace concentrations of various chemicals in products such as milk, baby formula, pet food, pills, household formulations, and more.No difficult sample preparation is necessary, and no prior experience in chromatography or analytical chemistry is required for the operator. Measurements typically take less than 5 minutes, and the Alltesta™ comes with a set of supplies sufficient for 200 analyses.<ul><li>Small foot-print, light-weight, can be used on a small table</li><li>No difficult sample preparation</li><li>Takes only a few minutes to start operating</li><li>No chemical experience is required for instrument user</li><li>User friendly, self explanatory cloud-based software</li><li>Produces easy-to-understand results within 5-10 minutes</li></ul><h4>Alltesta Gradient Automated HPLC Analyzer includes:</h4><ul><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1249">Alltesta™ Power Tower</a> (provides power and cloud connectivity)</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1244">Alltesta Mini Autosampler</a> (includes <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1245">Alltesta High-Pressure Switching Valve</a>)</li><li>Two <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1247">Alltesta™ Ultra High Pressure Mini Syringe Pumps</a> for gradient flow</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1248">Alltesta UV-Vis Detector</a></li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/SIELC_Alltesta_automaticky_HPLC_gradientovy_analyzator_2_6aec49522f.jpg" alt="Bioanalytic / SIELC: Alltesta Gradient Automated HPLC Analyzer" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_SIELC_Alltesta_automaticky_HPLC_gradientovy_analyzator_2_6aec49522f.jpg 107w," sizes="100vw" width="1969" height="2881"><h3>Application examples using Alltesta HPLC</h3><h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1242">Alltesta HPLC</a> Method for Berberine on <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?manufacturerItems=243&amp;search=Primesep+B">Primesep B</a> by SIELC Technologies</h4>Berberine is a naturally occurring alkaloid found in several plants, including the roots, rhizomes, and stem bark of plants such as Berberis species (barberry), Coptis chinensis (goldthread), and Hydrastis canadensis (goldenseal).<ul><li>Medicinal Properties: Berberine has been used in traditional medicine for its various medicinal properties, including antimicrobial, anti-inflammatory, and antioxidant effects.</li><li>Blood Sugar Regulation: Some studies suggest that berberine may help regulate blood sugar levels and improve insulin sensitivity, making it of interest in diabetes research.</li><li>Cholesterol Management: It has been investigated for potential benefits in managing cholesterol levels.</li><li>Anticancer Properties: Berberine has also shown promise in preclinical studies for its potential anticancer properties.</li></ul>Berberine supplements are available and marketed for various health purposes. In traditional medicine, berberine-containing plants have been used for treating various conditions.<h5>HPLC Method</h5><ul><li>Column: Primesep B, 3.2 x 150 mm, 5 µm, 100 A</li><li>Mobile Phase: MeCN/H2O – 20/80%</li><li>Buffer: H3PO4 -0.1%</li><li>Flow Rate:&nbsp;0.5 ml/min</li><li>Detection:&nbsp;UV 275 nm</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Lab_Rulez_SIECL_Alltesta_HPLC_metoda_proanalyzu_Berberinu_na_kolone_Primesep_B_od_SIELC_Technologies_444d7c3d9c.jpg" alt="Bioanalytic / SIELC: Alltesta HPLC Method for Berberine on Primesep B by SIELC Technologies" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Lab_Rulez_SIECL_Alltesta_HPLC_metoda_proanalyzu_Berberinu_na_kolone_Primesep_B_od_SIELC_Technologies_444d7c3d9c.jpg 241w," sizes="100vw" width="775" height="500"><h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1242">Alltesta HPLC</a> Method for Prednisone, Methylprednisolone, Prednisolone on <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library?manufacturerItems=243&amp;search=Primesep+B">Primesep B</a> by SIELC Technologies</h4>All three compounds have potent anti-inflammatory effects, making them valuable in treating conditions where inflammation plays a role.Prednisone:<ul><li>Mechanism of Action: Prednisone is a synthetic corticosteroid that mimics the action of cortisol, a natural steroid produced by the adrenal glands. It primarily exerts its effects by binding to glucocorticoid receptors and regulating gene expression.</li><li>Medical Uses: It is commonly used to treat inflammatory conditions, autoimmune disorders, allergic reactions, and certain cancers.</li></ul>Prednisolone:<ul><li>Derived Form: Prednisolone is the active form of prednisone. When prednisone is ingested, the liver converts it into prednisolone.</li><li>Mechanism of Action: Similar to prednisone, it has anti-inflammatory and immunosuppressive properties.</li></ul>Methylprednisolone:<ul><li>Potency: Methylprednisolone is considered to be more potent than prednisone.</li><li>Medical Uses: It is used in various conditions, including severe allergic reactions, inflammatory conditions, and as a part of immunosuppressive regimens.</li></ul>HPLC Method<ul><li>Column:&nbsp;Primesep B, 3.2 x 150 mm, 5 µm, 100 A</li><li>Mobile Phase: MeCN/H2O – 35/35%</li><li>Buffer: H3PO4 -0.1%</li><li>Flow Rate:&nbsp;0.5 ml/min</li><li>Detection: UV 275 nm</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Lab_Rulez_SIELC_Alltesta_HPLC_metoda_pro_Prednison_Methylprednisolon_Prednisolon_na_kolone_Primesep_B_od_SIELC_Technologies_019e25f09c.jpg" alt="Bioanalytic / SIELC: Alltesta HPLC Method for Prednisone, Methylprednisolone, Prednisolone on Primesep B by SIELC Technologies" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Lab_Rulez_SIELC_Alltesta_HPLC_metoda_pro_Prednison_Methylprednisolon_Prednisolon_na_kolone_Primesep_B_od_SIELC_Technologies_019e25f09c.jpg 224w," sizes="100vw" width="775" height="540"><h4>More examples of Alltesta™-based HPLC methods are available in the LabRulez Library</h4><ul><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/HPLC_Method_for_Analysis_of_Aspirin_in_Alka_Seltzer_Extra_Strength_Effervescent_Aspirin_on_Primesep_100_Column_d33816ae83.pdf">HPLC Method for Analysis of Aspirin in Alka-Seltzer Extra Strength Effervescent Aspirin</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/HPLC_Method_for_Analysis_of_Phenylephrine_Hydrochloride_1_in_Equate_Nasal_Spray_on_Primesep_100_Column_02f2983c25.pdf">HPLC Method for Analysis of Phenylephrine Hydrochloride 1% in Equate – Nasal Spray</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/HPLC_Method_for_Analysis_of_Rockstar_Zero_Carbs_Energy_Drink_with_Caffeine_and_Taurine_on_Primesep_100_Column_c87a85a0b4.pdf">HPLC Method for Analysis of Rockstar Zero Carbs Energy Drink with Caffeine and Taurine</a></li></ul>See this cloud-based example of the 2-Naphthalenesulfonic acid, Allura red, Fast Green FCF, 1,5-Naphthalenedisulfonic acid, Tartrazine separation method <a target="_blank" rel="noopener noreferrer" href="https://chrom.app/share/#/samples/11972/injection/21307/?t=a992fefcdd3647b19f6bed81e182d3d8">here</a>.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/SIELC_SIELC_Alltesta_Gradient_Automated_Analyzer_example_of_the_2_Naphthalenesulfonic_acid_Allura_red_Fast_Green_FCF_1_5_Naphthalenedisulfonic_acid_Tartrazine_separation_b96e648d63.jpg" alt="Bioanalytic / SIELC: SIELC Alltesta™ Gradient Automated Analyzer - example of the 2-Naphthalenesulfonic acid, Allura red, Fast Green FCF, 1,5-Naphthalenedisulfonic acid, Tartrazine separation" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_SIELC_SIELC_Alltesta_Gradient_Automated_Analyzer_example_of_the_2_Naphthalenesulfonic_acid_Allura_red_Fast_Green_FCF_1_5_Naphthalenedisulfonic_acid_Tartrazine_separation_b96e648d63.jpg 245w," sizes="100vw" width="1914" height="1134">

Compact, cost-effective HPLC system - SIELC Alltesta

<h4>A New Standard in HPLC Column Connection by SIELC</h4>SIELC Technologies, a pioneer in chromatography innovation, introduces a single-ended HPLC column — a revolutionary new design that redefines how columns are connected and used in high-performance liquid chromatography. For decades, laboratories have relied on the same standard column format — and have dealt with the same recurring problems: leaky fittings, clogged junctions, dead volume, and the constant hassle of tubing and connection selection.SIELC has developed a single-ended HPLC column design.This new system redefines how columns are installed, used, and replaced — streamlining your workflow and eliminating common points of failure.<h5>Key Benefits of the New Design:</h5><ul><li>No fittings or tubing required — eliminates leaks, complex installation, and the need to match tubing length or ID.</li><li>Zero dead volume thanks to a direct connection via a dedicated adapter.</li><li>Leak containment — in case of pressure failure, solvent remains inside the adapter with no external leakage.</li><li>Tool-free column replacement — disconnect the column without touching the fittings.</li><li>Aluminum body — ensures efficient heat transfer and provides a smooth, label-friendly surface even on the shortest columns.</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/SIELC_HPLC_column_3af7eb512a.jpg" alt="SIELC: HPLC column" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_SIELC_HPLC_column_3af7eb512a.jpg 171w," sizes="100vw" width="1600" height="1459"><h4>HPLC Column Adapter</h4>The SIELC adapter is a key component of the new single-ended column system, designed to eliminate leaks, dead volume, and connection complexity in HPLC setups.This adapter is an engineering solution that ensures perfect sealing, precise flow alignment, and reliable performance under high pressure — all without traditional fittings, ferrules, or tools.<ul><li>Dimensions: 21 × 21 × 26 mm (0.83 × 0.83 × 1.02 in)</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/SIELC_HPLC_Column_Adapter_8495244726.jpg" alt="SIELC: HPLC Column Adapter" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_SIELC_HPLC_Column_Adapter_8495244726.jpg 165w," sizes="100vw" width="918" height="868"><blockquote>Special offer: First-time buyers receive a Free Single-Column Adapter with their purchase. Experience the new connection standard — no fittings, no leaks, no extra cost.</blockquote><h4>How the Single-Ended HPLC Column Works?</h4><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/SIELC_How_the_Single_Ended_HPLC_Column_Works_24ebf8b072.jpg" alt="SIELC: How the Single-Ended HPLC Column Works?" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_SIELC_How_the_Single_Ended_HPLC_Column_Works_24ebf8b072.jpg 245w," sizes="100vw" width="1600" height="474">As the mobile phase enters through the MP Inlet, it flows into the adapter’s internal capillary aligned with the column axis. When the mobile phase passes through the column packing bed, it exits through the bypass channel connected with the MP Outlet.This design eliminates dead volume, prevents mobile-phase leakage, and provides a simple way to remove and replace the column when needed.<h3>Dual-Ended vs. Single-Ended HPLC Columns</h3><h4>Dual-Ended HPLC Columns</h4><ul><li>Column connections: Dual-ended HPLC columns have two separate ends. Each connection requires fittings, ferrules, and tubing to connect the column to the LC system.</li><li>Installation: Installation requires manual alignment of fittings and precise adjustment of tubing length to minimize dead volume. This process can be time-consuming and is prone to user error.</li><li>Dead volume: Dead volume is typically present at both the inlet and outlet connections. These junctions can cause peak broadening and reduced chromatographic efficiency.</li><li>Leakage risk: Leakage risk is relatively high because solvent connections rely on ferrules and fittings that may loosen or wear over time.</li><li>System integration: Dual-ended columns require separate tubing and careful fitting when installed in column heaters or coolers.</li><li>Thermal performance: Heat transfer may be less uniform due to multiple connections and tubing interfaces.</li><li>Guard column option: Using a guard column requires additional hardware and extra connections, which can introduce additional dead volume into the system.</li><li>Available phases: Dual-ended columns are typically available in standard stationary phases such as C18, HILIC, ion exchange, and others.</li></ul><h4>Single-Ended HPLC Columns</h4><ul><li>Column connections: Single-ended columns use a single coaxial connection with an integrated adapter. No fittings, ferrules, or tubing are required.</li><li>Installation: The adapter is installed only once. After that, the column can be replaced in seconds without tools, making maintenance faster and simpler.</li><li>Dead volume: Near-zero dead volume is achieved because the internal capillaries are precisely aligned within the adapter.</li><li>Leakage risk: The mobile phase is fully contained inside the adapter, creating a leak-free design even under high pressure conditions.</li><li>System integration: A compact stainless-steel adapter allows easy installation in column heaters or coolers.</li><li>Thermal performance: The aluminum outer body provides efficient and uniform heat transfer across the column.</li><li>Guard column option: An integrated zero-dead-volume guard column option is available, allowing quick cartridge replacement without tools.</li><li>Available phases: All SIELC phases as well as traditional chromatographic phases (C18, HILIC, ion exchange, mixed-mode, BIST™, etc.) are available in this format.</li></ul><h4>Adapter for Guard Column</h4>If your workflow requires a guard column or a filter to be installed inline with the main column, then a specialized adapter with a guard option should be used.The SIELC HPLC Single-Column Guard protects the analytical column by capturing particulates and strongly retained contaminants before they reach the stationary phase. Its unique direct-insert design provides a zero-dead-volume connection and allows quick, tool-free replacement of a used guard with a new one. Guards are available for all SIELC stationary phase types — Primesep™, Newcrom™, Chromni™, PEI™, BIST™, and for generic phases such as C18, HILIC and IE.<h5>Guard Cartridges (2 per pack)</h5><ul><li>Guard Adapter — Dimensions: 21 × 21 × 42 mm (0.83 × 0.83 × 1.65 in)</li></ul><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/SIELC_guard_cartridges_4077d1edf2.jpg" alt="SIELC: Guard cartridges" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_SIELC_guard_cartridges_4077d1edf2.jpg 245w," sizes="100vw" width="768" height="262"><h4>Why This Matters</h4>This new column system removes the guesswork and fragility from high-pressure liquid chromatography. By eliminating traditional high-pressure fittings and minimizing dead volume, you gain more consistent results, lower the risk of system failure, and reduce downtime.Whether you’re running routine analyses or complex separations, this design enhances reliability and usability — so you can focus on your science, not your setup.<blockquote><h5>All SIELC and Traditional Columns and Guards Available in a New Format</h5>C18, HILIC, Ion Exchange, Mixed-Mode, Ion Exclusion, Protein, BIST, and more.</blockquote><blockquote>📄 Want to learn more? <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/Single_ended_column_new_2_1_b80be5f107.pdf">Download our brochure</a> to learn about a single-ended HPLC column design.</blockquote>

Single-Ended HPLC Column by SIELC

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Bioanalytic started its operations in 1998. The company was born from a passion for science and the need to provide innovative solutions in the laboratory equipment market, from a small business to a dynamically developing company with an established position.

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