Overview
Total Organic Carbon (TOC) analysis water is a specialized grade of purified water designed for use in TOC testing instruments. It must exhibit ultra-low levels of organic carbon to avoid skewing test results. TOC water is critical in industries where precise measurement of organic contamination is required, such as pharmaceuticals, semiconductors, and environmental monitoring. Produced through advanced purification techniques like reverse osmosis, distillation, and UV oxidation, TOC water typically contains less than 5 parts per billion (ppb) of organic carbon. Its resistivity exceeds 18 MΩ·cm, ensuring minimal ionic interference. Regulatory standards, including USP <643> and ASTM D1193, define its quality parameters.
Physical and Chemical Properties
TOC analysis water shares the basic properties of pure water (H₂O) but is distinguished by its exceptional purity. It is colorless, odorless, and free of particulate matter. Key metrics include a TOC level below 5 ppb and resistivity >18 MΩ·cm, indicating negligible ionic and organic impurities. The water is chemically inert and stable under standard conditions. Its pH is neutral (6.5–7.5), and it has no buffering capacity. Unlike laboratory-grade deionized water, TOC water undergoes additional treatment to eliminate trace organics, often using UV irradiation or ultrafiltration.
Main Applications
TOC analysis water serves as a blank or calibration standard in TOC analyzers, ensuring accurate quantification of organic carbon in test samples. In pharmaceuticals, it verifies the purity of Water for Injection (WFI) and purified water systems per USP and pharmacopeial requirements. The semiconductor industry relies on it for wafer cleaning and process validation, where even nanogram-level organics can impact yields. Environmental labs use it to calibrate instruments for monitoring wastewater or drinking water compliance. Its role is pivotal in quality control across regulated sectors.
Safety and Storage
While non-toxic, TOC water requires careful handling to maintain purity. Contamination from airborne organics, containers, or pipettes can compromise its integrity. Store in pre-cleaned, airtight containers made of materials like borosilicate glass or fluorinated polyethylene. Avoid prolonged exposure to light or air, which may introduce CO₂ or organic vapors. Label containers clearly and use dedicated, non-reactive tools for dispensing. Shelf life varies by packaging but typically ranges from 3–12 months when stored properly.
B2B Procurement Guide
When sourcing TOC analysis water, prioritize suppliers with ISO 9001 certification and compliance with relevant standards (e.g., USP, ASTM). Request certificates of analysis (CoA) for each batch, verifying TOC levels, resistivity, and microbial counts. Consider packaging options—small volumes may come in pre-sterilized bottles, while bulk orders often use tamper-evident carboys. Pricing depends on purity grade and volume, with discounts for long-term contracts. Evaluate logistics to ensure contamination-free delivery, especially for international shipments.
Related Manufacturers
- 主营：硫酸铜、指示液、铁离子、碳酸钠、锰离子、镁离子、缓冲液、硫酸镁、碘化钾、氯化钠、氯离子、蒸馏水、葡萄糖、氯化物、钛离子、储备液、四苯硼钠、标准溶液、甲醛试纸、氢氧化钾、缓冲溶液、磷表试剂、草酸试剂、硫代乙酰胺、电脑水冷液
- 主营：标准溶液/试液、指示液、中药对照药材、中药对照品、2025药典、滴定溶液、化学分析标准品、杂质对照品、空白基质、硝酸银滴定溶液、氯化钙试液、缓冲液、稳定同位素化合物、稀甘油、高氯酸滴定溶液、稀醋酸、碘化钾碘试液、氯化钠溶液
- 主营：中央纯水系统、实验室瓶装超纯水、实验室设备、分析实验室用水、RO膜、自来水预处理、实验动物饮水、纯水系统水箱、实验室超纯水机售后维护、制冷型培养箱、纤维素分析仪
- 主营：循环器、制冰机、超声波、薄膜过滤检查仪、恒温水箱、恒温水槽、无菌盐水、恒温油槽、恒温制冷、低温恒温槽、循环一体机、恒温水浴锅、低温冷却液、磁力搅拌恒温
- 主营：喷雾干燥机、分子蒸馏仪、薄膜蒸发器、精馏装置/精馏塔、索氏提取器/脂肪测定、细胞计数器、氮吹仪、多功能蒸馏仪、固相萃取仪、液液萃取仪、微生物限度仪、集菌仪、石墨消解仪、微波消解仪、cod消解仪
- 主营：化验室、超纯水、实验室、纯水机、中央空调、商用净水、纯水设备、处理系统、牙科污水、口腔污水、一体式纯水、安装软水机、工业直饮水、一体化污水、医疗软化水、柜式软水机、空调软化水、智能电路板、软化水设备、智能软化水
- 主营：光化学反应仪、微波消解仪、蒸馏仪、微生物检测检查用设备、萃取仪、索氏提取器
- 主营：蒸馏仪、氮吹仪、消解仪、微生物检测检查用设备、萃取仪、脂肪测定仪、喷雾干燥机
- 主营：喷雾干燥机、一体化蒸馏仪、脂肪测定仪、COD消解仪、微波消解仪、石墨消解仪、二氧化硫蒸馏仪、固相萃取仪、细胞计数器、微生物限度检测仪、翻转振荡器
- 主营：集菌仪、测试箱、干燥箱、蒸馏器、培养箱、浓缩仪、培养设备、蒸馏装置、分液漏斗、培养装置、真空手套箱、氮气吹扫仪、高氧细胞箱、薄膜蒸发器、小鼠饲养箱、厌氧手套箱、残留测定仪、垂直振荡器、植物生长室、厌氧工作站、昆虫饲养箱、喷雾干燥机、硫化物吹气仪、台式低温摇床、氮气浓缩装置
- 主营：R2A琼脂对照培养基、硫乙醇酸盐流体对照培、沙氏葡萄糖琼脂对照培、细菌内毒素检查用水、胰酪大豆胨琼脂对照培、胰酪大豆胨液体对照培、R2A琼脂培养基、TCBS琼脂培养基、大豆酪蛋白琼脂培养基、甘露醇氯化钠琼脂、结晶紫中性红胆盐琼脂、麦康凯液体培养基、孟加拉红培养基、平板计数琼脂培养基、沙氏葡萄糖琼脂培养基、胰酪大豆胨琼脂培养基、胰酪大豆胨液体培养基、营养琼脂培养基、湛江博康鲎试剂
- 主营：纱布块、纱布垫、隔离衣、橡胶检查手套、防护服、医用帽、医用鞋套、医用口罩、外科手套、医用垫单、定制产包、定制换药包、一次性帽子、一次性被服包、医用隔离鞋套、医用外科口罩、医用防护口罩、医用护理垫、医用棉球、医用棉签、医用敷贴、一次性使用中单、血管造影手术包、备皮包、一次性使用产包
- 主营：实验室专用超纯水机、工业水处理设备、实验室废水处理系统、直饮水处理设备、医院专用纯水设备
- 主营：气体检测仪、油烟检测仪、烟尘烟气检测仪、微生物限度检查、水质检测仪、粉尘检测仪、牛奶分析仪、林格曼黑度计、食用油品质检测仪、测氡仪、粉尘采样器、大气采样器、红外烟气分析仪、氨氮检测仪、COD检测仪、臭氧检测仪
- 主营：直链淀粉标准溶液、支链淀粉标准溶液、环氧乙烷标准溶液、碱性碘化汞钾标准溶液、土壤易溶盐、嗅辨考核液、2020药典纯化水检测试剂、可见异物标准物质、玻璃微珠粒度、土壤标准物质、溶液标准物质、铝土矿标准物质、氯化钠渗透压、苯甲酸标准物质、微粒标准物质
- 主营：喷雾干燥机、一体化蒸馏仪、光化学反应仪、微生物限度检查法、喷雾干燥设备、一体化蒸馏装置、二氧化硫蒸馏仪、水蒸气蒸馏仪、分子蒸馏仪、薄膜蒸发器、精馏设备、微波消解仪、石墨消解仪、全自动液液萃取仪、氮吹仪、全自动索式提取仪、脂肪测定仪、索氏提取器、氮气发生器、空气发生器、氮氢一体机、氮氢空一体机、全自动COD回流消解、微生物限度仪、硫化物吹气仪