Quantitative Analytical Reagents
Overview
Quantitative analysis reagents are specialized chemicals designed for precise measurement in scientific and industrial processes. They meet stringent purity standards, often exceeding 99%, to minimize errors in analytical results. These reagents are fundamental in fields like pharmaceuticals, environmental monitoring, and food safety testing, where accuracy is critical. Common categories include titrants (e.g., sodium hydroxide for acid-base titrations), standard solutions (e.g., certified reference materials), and buffers for pH control. Manufacturers typically provide certificates of analysis (CoA) detailing exact concentrations, impurity levels, and traceability to international standards like NIST or ISO.
Physical and Chemical Properties
The properties of quantitative analysis reagents vary by compound but share high-purity traits. For instance, 0.1M hydrochloric acid titrant must maintain ±0.1% concentration tolerance, while potassium hydrogen phthalate (KHP) primary standards exhibit stability and exact molecular weights. Key metrics include low water content (for non-aqueous reagents), minimal heavy metal traces, and consistent reactivity. Reagents like silver nitrate for argentometry are light-sensitive, requiring amber bottles. Density and solubility data are critical for preparing standardized solutions, while melting/boiling points indicate thermal stability during storage or use.
Main Applications
These reagents are indispensable in volumetric analysis (e.g., titrations), where they react stoichiometrically with analytes. Industries rely on them for drug potency testing (USP assays), wastewater COD determination, and nutritional labeling in food. In chromatography, HPLC-grade solvents ensure baseline separation, while atomic absorption spectroscopy uses metal standard solutions for calibration. Environmental labs employ reagents like potassium dichromate for BOD testing. Specialty applications include Karl Fischer reagents for moisture analysis and EDTA complexes for hardness testing in water treatment.
Safety and Storage
Handling requires adherence to SDS guidelines. Corrosive reagents (e.g., sulfuric acid) demand acid-resistant PPE, while toxic compounds like mercuric nitrate need fume hoods. Hygroscopic materials (e.g., sodium hydroxide pellets) require desiccators to prevent moisture absorption. Storage conditions vary: some buffers are stable at room temperature, while enzyme substrates may need freezing. Labeling should include preparation dates, concentrations, and hazard symbols. Spill kits and neutralizers (e.g., sodium bicarbonate for acids) must be accessible in workspaces.
B2B Procurement Guide
Buyers should prioritize suppliers with ISO 17025 accreditation for reagent production. Key considerations include batch-specific CoAs, expiry dates (e.g., iodine solutions degrade faster), and packaging options (bulk drums vs. pre-diluted bottles). For traceability, opt for reagents with Lot numbers and CRM certification. Tiered pricing often applies—high-volume orders of common titrants (e.g., 0.1N NaOH) may cost 15–30% less per liter. Evaluate logistics: temperature-controlled shipping is essential for heat-sensitive reagents. Some vendors offer custom formulations for niche applications.
Related Manufacturers
- 主营：--
- 主营：--
- 主营：--
- 主营：硝酸钠、柠檬酸、干燥剂、酸氢钠、消泡剂、氯化铵、去除剂、偏磷酸钠、印染助剂、工业尿素、磷酸二氢钠、食品添加剂、磷酸二氢钾、杀菌消毒液、塑料色母粒、工业级草酸、净水絮凝剂、清洗清洁剂、磷酸氢二钾、酸度调节剂、粉末活性炭、工业清洗剂、轻质碳酸钠、蜂窝活性炭、工业污水处理
- 主营：科研试剂盒、酶免试剂盒、elisa试剂盒、生化试剂盒、生物试剂、进口ELISA试剂盒、PCR试剂盒、细胞、生化测试盒
- 主营：同源物、脂蛋白、合蛋白、试剂盒、粘液素、抑制素、亲环素、保护素、信号素、胞色素、脂肪酶、末端肽、磷脂酶、蛋白酶、变位酶、抑制剂、脱水酶、抑制物、凝蛋白、激活肽、连接酶、样激酶、解氨酶、恒温箱、利钠肽
- 主营：人ELISA试剂盒、大鼠ELISA试剂盒、生化法检测试剂盒、分子学检测试剂盒、植物ELISA试剂盒、鱼ELISA试剂盒
- 主营：硫化铵、氧化石蜡皂、选矿药剂、表面活性剂、乳化剂、捕收剂、萃取剂、阻燃剂
- 主营：氨基酸、有机砌块、基础溶剂、辅酶试剂、通用溶剂、常用耗材、化工试剂、氘代试剂、试剂耗材、生物试剂、分析对照品、核酸相关试剂、蛋白相关试剂、辅酶核心试剂、相关化学试剂、科研常用试剂、科研耗材、超干溶剂、实验室耗材、管通透析装、线限佐菌素、助力实验室、牛磺去氧胆酸、蛋白相关耗材、薄层层析硅胶板
- 主营：生化分析仪、宠物x光机、高清黑白超、数字化x光射线
- 主营：Elisa试剂盒
- 主营：涂料助剂、工业清洗剂、表面活性剂、用作分析试剂、合成材料助剂、合成香料、溶剂、香精和香料中间体、合成材料中间体、炼厂助剂、选矿药剂
- 主营：试剂盒、酶联免疫试剂盒、进口试剂盒、激素试剂盒、elisa试剂盒、科研试剂盒、唾液检测试剂盒、登革热试剂盒、临床试剂盒
- 主营：脂蛋白、胆固醇、褪黑素、试剂盒、同源盒、源蛋白、磷酸酶、信号素、整合素、鹦鹉衣、脂肪酶、类固醇、蛋白酶、氧化酶、中段肽、羟化酶、凝集素、白三烯、松弛肽、催乳素、肌酸受、白介素、质激素
- 主营：阻燃剂、胶黏剂、硫酸锆、硫酸锂、硫酸锶、硫酸锰、聚合物、锂电池、磷酸铵、锑酸钠、磷酸铁、肉桂醇、碳酸镁、碳酸镍、异丁酮、赖氨酸、氯铂酸、浮选剂、淀粉钠、皂角苷、乙酸锰、碳酸锆、碳酸铵、碳酸锰、代盐剂
- 主营：标记试剂盒、ELISA试剂盒、蛋白纯化试剂盒、培养添加因子、特色二抗、单抗融合套装
- 主营：液相检测、测试盒、检测卡、检测试剂盒、Elisa试剂盒、农残检测试剂盒、试剂、比色法检测、荧光法检测
- 主营：ELISA试剂盒、抗体