Overview
Dicyandiamide (DCD) detection is critical in industries such as agriculture, where it is used as a nitrification inhibitor in fertilizers, and in manufacturing, where it serves as a flame retardant or epoxy hardener. Analytical methods like high-performance liquid chromatography (HPLC), enzyme-linked immunosorbent assay (ELISA), and spectrophotometry are commonly employed to ensure product quality and regulatory compliance. Regulatory bodies, including the EPA and EU REACH, set limits for DCD residues in food and environmental samples due to potential ecological impacts. Detection protocols often align with ISO 17025 standards, emphasizing accuracy and reproducibility for B2B applications.
Physical and Chemical Properties
Dicyandiamide is a stable, non-volatile compound with a high melting point (209–212°C), making it suitable for high-temperature applications. Its solubility in water (2.3 g/100 mL at 20°C) and organic solvents influences extraction methods for detection. The compound’s UV absorbance at 220 nm facilitates spectrophotometric analysis. Key challenges in detection include interference from urea in fertilizer matrices and the need for derivatization in GC-MS due to DCD’s low volatility. Modern techniques like LC-MS/MS offer improved sensitivity (detection limits ~0.01 mg/kg) for trace analysis in complex samples.
Main Applications
In agriculture, DCD detection ensures proper dosage in slow-release fertilizers, where excess amounts can contaminate groundwater. The compound’s nitrogen-stabilizing properties are monitored to comply with regulations like the EU’s Nitrates Directive. Industrial applications require purity verification (≥99% for epoxy resins) to prevent curing defects. Flame-retardant formulations in plastics and textiles are tested for DCD content (typically 10–30% by weight) to meet fire safety standards such as UL 94. Environmental monitoring also detects DCD runoff near farms or factories.
Safety and Storage
DCD is classified as a Category 2 skin irritant under GHS. Labs handling DCD detection must use PPE (gloves, goggles) and fume hoods to minimize exposure. Spills should be neutralized with dilute acetic acid and absorbed with inert materials. Samples for analysis should be stored in airtight containers at room temperature, protected from moisture to prevent hydrolysis. Long-term storage may require desiccants or refrigeration for stability-critical applications like pharmaceutical intermediates.
B2B Procurement Guide
Buyers should prioritize suppliers providing certified reference materials (CRMs) with ISO 17025 accreditation for detection kits. Bulk purchases (≥100 kg) often reduce costs by 15–20%, but require COA validation for batch consistency. Key procurement criteria include method compatibility (e.g., HPLC-ready standards), lead time (typically 2–4 weeks for custom assays), and technical support for method development. Emerging markets in Asia offer competitive pricing, but quality audits are recommended to avoid substandard reagents.
Related Manufacturers
- 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：丁烯酯、甘氨酸、甲酸镍、二苯胍、乙酸镁、阻燃剂、乙酸镉、木香油、酸性橙、西瓜酮、硫酸锌、硫酸锆、硫酸锂、杨梅酯、百里酚、硫酸锶、硫酸锰、十八酸、紫苏葶、聚合物、肌氨酸、卡必醇、碳酸镧、褪黑素、磷酸铁
- 主营：医药级盐酸胍、盐酸胍、液体盐酸胍、双氰胺、超细双氰胺、单氰胺、30%单氰胺、电子级双氰胺、医药级双氰胺、粉末双氰胺、磷酸二胍、双氰胺粉末、工业级超细双氰胺、乙炔炭黑、磷酸胍、脒基硫脲、医药级硫氰酸胍、硫氰酸胍、医药级碳酸胍、碳酸胍、国标碳酸胍、高含量脒基硫脲、高纯度脒基硫脲、硫氰酸胍粉末、工业级磷酸胍
- 主营：120号溶剂油、150号溶剂油、200号溶剂油、丙二醇、聚乙二醇、二茂铁、乙二醇、乙二醇丁醚、260号溶剂油、白油、D40溶剂油、D60溶剂油、D80溶剂油、D130溶剂油、磺化煤油、对甲苯磺酰氯、莫卡、石蜡、铝粉膏、抗氧剂T501、甲基丙烯酸缩水甘油酯、甲基叔丁基醚、甲缩醛、石脑油、正十四烷
- 主营：五金工件、涂料油墨、化工原料、二价酸酯、乙二醇、二氯甲烷、医药中间体、航空煤油、丙烯酸丁酯、环己酮、食用酒精
- 主营：akd蜡粉、138树脂、黑松香、双氰胺、咪唑烷酮、合成材料、氢氧化镧、环氧树脂、无水乙醇、制造树脂、环烷酸铅、树脂色号、偏硼酸钙、十八烷酸、三十烷醇、古马隆树脂、聚醋酸乙烯酯、偏钒酸钠、氧化铈、氧化锆、酚醛树脂
- 主营：甲酸镍、水苏糖、阻燃剂、双氰胺、柠檬醛、西瓜酮、氢醌酯、卡必醇、消泡剂、磷酸铁、肉桂醇、肉桂醛、碳酸镉、磷酸铝、银墨水、椰油胺、封装胶、化合物、桦木油、稀释剂、羟乙基、乙硫氮、润肤剂、球虫酯、矮壮素、异龙脑
- 主营：架桥剂、YW100 锂萃取剂、端羧基液体丁腈橡胶、乙烯基磷酸二乙酯、间二异丙苯、10-羟基癸酸、苯乙烯磷酸、肉豆蔻酸镁、硬脂酸钴、全氟三丁胺、磷酸锰铁锂、β-磷酸三钙、十一烯酸、钨酸铝、1-乙炔基环已醇、锂硅合金、溴甲酚绿、生物活性玻璃、溴代海因树脂颗粒、红铝、龙涎酮、原丁酸三甲酯
- 主营：全氟三丁胺、异丙醇铝、纳米勃姆石、二苄叉山梨醇、六氟丙烯二聚体、六氟环氧丙烷二聚体、二异戊基硫醚、隐色结晶紫、邻菲罗啉
- 主营：十六烷基三甲基溴化铵、乳化剂、亚磷酸三丁酯、十二烷基甜菜咸、棕榈油、钛酸四丁酯、钛酸四乙酯
- 主营：甲基磺酸、乙醇钠、盐酸胍、乙二醛、十二烷基苯、对二氯苯、戊二醛、二氯甲烷、双氰胺、偶氮二异丁腈、二氧六环、四甲基乙二胺、对氯苯甲酸、丙酸乙酯、正丁醚、硫醇、多聚磷酸、碳酸钾、正己醇、乙腈、水杨醛、对甲酚、吗啉、咪唑
- 主营：丙三醇、eva150ev150、原厂原包、丙二醇、乙二醇、1.4丁二醇、三井杜邦、一水柠檬酸
- 主营：磺酸、硫酸铜、碳酸钾、己二酸、丙二醇、双氰胺、二甲苯、二甲基亚砜、乙二醇、柠檬酸钠、葡萄糖、AES、氯化铵、乳酸、三乙醇胺、片碱、过硫酸铵、异丙醇、苯酚、次氯酸钠、次磷酸钠、亚硝酸钠、乙醇、op-10、碳酸氢铵
- 主营：双氰胺含量、化工原料、工业添加剂、进口原料
- 主营：黄糊精、松醇油、氨基磺酸、戊二醛、五氧化二钒、二号浮选油、羟基乙叉二膦酸、福美钠、牛油脂肪酸、漂粉精、氧化铅、九水硫化钠、氨基锂、次氯酸钙、蛋白胨、苯甲醇、苯亚磺酸钠、氯铂酸、硅酸镁铝、草酸亚铁、草酸钛钾、甲基磺酸铋、牛骨蛋白胨、苄基胂酸、氟化氢钾
- 主营：三甘醇、纯牛骨蛋白胨、牛油脂肪酸、五氧化二钒、戊二醛、二甲基二硫代氨基甲酸、氯偏乳液、苄基胂酸、漂粉精、苯甲醇、草酸镍、磷酸、六氟磷酸钾、次氯酸钙、钯碳、草酸钛钾、粘土固化剂、福美钠、碳酸钡、硝酸异辛酯、四氧化三铅、氯化锌、松醇油、磺化油、氟化氢钾
- 主营：9000-40-2、2068-80-6、4635-59-0、双氰胺、5122-20-3、甘氨酸、水苏糖、阻燃剂、乙酸镍、3051-09-0、月桂胺、9000-07-1、硫酸锌、9012-76-4、4861-19-2、9000-70-8、铝酸锂、1483-28-9、6295-87-0、7681-52-9、碳酸镨、磷酸铁、灭火剂、水合肼、碳酸镁、桔子油