计算溶液所需的质量、体积或浓度。
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,适用于对基线干扰要求严格的色谱和分析工作流程。
2-8°C储存,避光。低温运输 。请查阅批次 COA 获取详细规格。
SDS、COA、产品数据表及规格说明书均可下载。可通过批号查询获取批次 COA。
在色谱分析、有机合成和交叉偶联反应领域已被 10 篇同行评审文献引用。
本标准物质主要用于食品、卫生、环境、农业等领域相应成分含量、残留检测及检测过程中分析仪器校准、分析方法评价以及质量控制。
样品制备
本标准物质采用纯度准确定值的麦草畏纯品为原料,以甲醇为溶剂,采用重量-容量法准确配制而成。
麦草畏,英文名称:Dicamba,CAS:1918-00-9
溯源性及定值方法
本标准物质以配制值作为标准物质浓度的标准值,制备的标准物质和质量控制对照样采用高效液相色谱法(HPLC)比对计算,核验配制值。通过使用满足计量学特性要求的制备方法、测量方法和计量器具,保证标准物质的量值溯源性。
特性量值及不确定度
编号 | 名称 | 标准值(μg/mL) | 相对扩展不确定度(%)(k=2) |
BWY272955 | 甲醇中麦草畏 | 100 | 3 |
标准值的不确定度主要由原料纯度、称量、定容以及均匀性、长期稳定性等不确定度分量合成。
均匀性检验及稳定性考察
参照国家《一级标准物质》技术规范,对分装后的样品进行随机抽样。采用高效液相色谱法(HPLC)对溶液浓度进行均匀性检验、稳定性考察。检验结果:均匀性符合 F 检验规则,稳定性考察良好。
本标准物质量值自定值之日起,有效期24个月, 研制单位将继续跟踪监测该标准物质的稳定性,有效期内如发现量值变化,将及时通知用户。
包装、储存及使用
1.包装:本标准物质采用玻璃安瓿瓶包装,约1.2mL/支 ,移取或稀释时请以移液管量取为准。
2.储存及使用:冷藏和避光条件下保存。使用前于室温(20±3℃)平衡,并摇动均匀。安瓿瓶一经打开,应立即使用,不可再次熔封后作为标准物质使用。
This standard substance is mainly used in the fields of food, hygiene, environment, agriculture, etc. The content of the corresponding components, residual detection and analytical instrument calibration, analysis method evaluation and quality control in the detection process.
Sample Preparation
This standard substance is made of pure dicamba with accurate purity as the raw material, methanol as the solvent, and accurately prepared by the weight-volume method.
Dicamba, English name: Dicamba, CAS: 1918-00-9
Traceability and valuation method
This standard material uses the prepared value as the standard value of the concentration of the standard material. The prepared standard material and the quality control reference sample are calculated by high performance liquid chromatography (HPLC) to verify the prepared value. Through the use of preparation methods, measurement methods and measuring instruments that meet the requirements of metrological characteristics, the traceability of the value of the reference material is guaranteed.
Characteristic value and uncertainty
Number | Name | Standard value(μg/mL) | Relative expanded uncertainty(%)(k=2) |
BWY272955 | Dicamba in Methanol | 100 | 3 |
The uncertainty of the standard value is mainly composed of raw material purity, weighing, constant volume, uniformity, long-term stability and other uncertainty components.
Uniformity inspection and stability inspection
With reference to the technical specifications of the national "Class 1 Standard Substances", random sampling is carried out on the subpackaged samples. High performance liquid chromatography (HPLC) was used to inspect the uniformity and stability of the solution concentration. Test result: the uniformity meets the F test rule, and the stability is well investigated.
The quality value of this standard material is valid for 24 months from the date of setting the value. The development unit will continue to track and monitor the stability of the standard material. If there is any change in the value within the validity period, the user will be notified in time.
Packaging, storage and use
1. Packaging: This standard substance is packaged in a glass ampoule, about 1.2mL/piece. When pipetting or diluting, please refer to the pipette volume.
2. Storage and use: Store in refrigeration and protected from light. Before use, equilibrate at room temperature (20±3℃) and shake evenly. Once the ampoule is opened, it should be used immediately. It cannot be used as a standard substance after being sealed again.
分类树(Taxonomy Tree)
| 界(kingdom) | 有机化合物 |
|---|---|
| 超类(Superclass) | 苯类化合物 |
| 类(Class) | 苯及其取代衍生物 |
| 亚类(Subclass) | 苯甲酸及其衍生物 |
| 中间层级节点(Intermediate Tree Nodes) | 甲氧基苯甲酸及其衍生物 |
| 直接上位类(Direct Parent) | 邻甲氧基苯甲酸及其衍生物 |
| 其他上位类(Alternative Parents) | 二氯苯甲酸 2-卤代苯甲酸 3-卤苯甲酸 卤代苯甲酸 1-羧基-2-卤代芳香族化合物 苯氧基化合物 茴香醚 苯甲酰衍生物 二氯苯 甲氧基苯 烷基芳基醚 芳基氯化物 乙烯基卤化物 一元羧酸及其衍生物 有机氯化物 有机氧化物 碳氢化合物衍生物 |
| 分子骨架(Molecular Framework) | 芳香族同单环化合物 |
| 取代基(Substituents) | 1-羧基-2-卤代芳烃 - 1,4-二氯苯 - 2-氟苯酚 - 2-呋喃酮 - 2,5-二氯苯甲酸 - 3-氟苯甲酸 - 3-呋喃酮 - 芳基醚 - 茴香醚 - 芳香族同单环化合物 - 芳基氯化物 - 芳基卤化物 - 苯甲酸 - 苯甲酰 - 羧酰胺基 - 羧酸衍生物 - 氯苯 - 乙醚 - 卤苯 - 卤苯甲酸 - 卤代苯甲酸或其衍生物 - 烃衍生物 - 甲氧基苯 - 单羧酸或其衍生物 - O-甲氧基苯甲酸或其衍生物 - 有机氧化物 - 有机氧化合物 - 有机氯化物 - 有机卤化物 - 有机氧化合物 - 苯酚醚 - 苯氧基化合物 - 乙烯醯基鹵化物 |
| 描述(Description) | 该化合物属于邻甲氧基苯甲酸及其衍生物类有机化合物。这类化合物是以苯环2位氢原子被甲氧基取代的苯甲酸衍生物。 |
| 外部描述符(External Descriptors) | Benzoic acid herbicides |
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