50-14-6/V-024-1ML Vitamin D2/维生素D2标准溶液
1.0 mg/mL in Ethanol | Certified Reference Material/V-024-1ML
Vitamin D2 is a form of vitamin D also known as ergocalciferol. Marketed under trade names including Deltalin, Drisdol, and Calcidol, vitamin D2 is often used as a vitamin D supplement for indi[……]
50-14-6/V-024-1ML Vitamin D2/维生素D2标准溶液 Read More »
54-28-4/V-021-1ML (+)-γ-Tocopherol (Vitamin E)/γ-生育酚标准溶液/维生素E标准溶液
1.0 mg/mL in Methanol | Certified Reference Material/V-021-1ML
A lipid soluble form of Vitamin E, gamma-Tocopherol is important to human health as an antioxidant and food additive. Vitamin E deficiency, often the result of poor[……]
54-28-4/V-021-1ML (+)-γ-Tocopherol (Vitamin E)/γ-生育酚标准溶液/维生素E标准溶液 Read More »
10191-41-0/V-020-1ML (±)-α-Tocopherol (Vitamin E)/α-生育酚标准溶液/维生素E标准溶液
1.0 mg/mL in Methanol | Certified Reference Material/V-020-1ML
alpha-Tocopherol is a lipid-soluble form of Vitamin E important to human health as an antioxidant. Often the result of poor nutrition or low absorption of dietary[……]
10191-41-0/V-020-1ML (±)-α-Tocopherol (Vitamin E)/α-生育酚标准溶液/维生素E标准溶液 Read More »
68-19-9/V-019-1ML Cyanocobalamin (Vitamin B12)/氰钴胺素标准溶液/维生素B12标准溶液
1.0 mg/mL in Methanol | Certified Reference Material/V-019-1ML
Cyanocobalamin is the most common and widely-produced of the vitamin B12 analogs. Vitamin B12, important for proper neuronal function and formation of blood cellula[……]
68-19-9/V-019-1ML Cyanocobalamin (Vitamin B12)/氰钴胺素标准溶液/维生素B12标准溶液 Read More »
98-92-0/V-016-1ML Nicotinamide (Vitamin B3)/ 烟酰胺标准溶液/维生素B3标准溶液
1.0 mg/mL in Methanol | Certified Reference Material
Nicotinamide is also known as niacinamide or nicotinic acid amide. This certified solution standard is suitable for a variety of testing applications including quality control te[……]
98-92-0/V-016-1ML Nicotinamide (Vitamin B3)/ 烟酰胺标准溶液/维生素B3标准溶液 Read More »
67-03-8/V-014-1ML Thiamine HCl (Vitamin B1)/盐酸硫胺素标准溶液/维生素B1标准溶液
1.0 mg/mL (as free base) in Methanol | Certified Reference Material/V-014-1ML
Thiamine is a water-soluble vitamin of the B complex whose phosphate derivatives are involved in many cellular processes required for overall human heal[……]
67-03-8/V-014-1ML Thiamine HCl (Vitamin B1)/盐酸硫胺素标准溶液/维生素B1标准溶液 Read More »
68-26-8/V-011-1ML Retinol (Vitamin A)/视黄醇标准溶液/维生素A标准溶液
100 µg/mL ± 25% (Refer to COA) in Ethanol with 0.1% (w/v) BHT | Reference Material/V-011-1ML
Retinol is one of the animal forms of Vitamin A and is essential for vision, skin health, and bone growth. Vitamin A deficiency, often the result[……]
68-26-8/V-011-1ML Retinol (Vitamin A)/视黄醇标准溶液/维生素A标准溶液 Read More »
CRM-OA-d（批号：20141119） 大田软海绵酸认证校准溶液
NRC标准品CRM-OA-d大田软海绵酸认证校准溶液 Okadaic acid（OA）是一种由海洋甲藻产生的毒素，与腹泻性贝类中毒（DSP）有关，这是一种因食用受污染的贝类而引起的胃肠道综合征。贝类中DSP（OA、DTX1和DTX2）的最大允许总水平目前为整个组织中0.16 mg OA当量/kg[1]。CRM-OA-d是一种经认证的OA甲醇校准溶液，是2007年发布的CRM-OA-c的替代品。
Okadaic acid/CRM-OA-d
CAS registry No.: 78[……]
NRC标准品CRM-OA-d大田软海绵酸认证校准溶液简介 Read More »
去甲基微囊藻毒素LR校准溶液标准物质[Dha⁷]-Microcystin-LR预期用途
CRM dmMCLR是一种校准溶液CRM，旨在开发分析方法和准确定量[Da7]-微囊藻毒素LR。该CRM中的毒素浓度适用于制备稀释系列，用于仪器校准，如通过紫外吸收法（LC-UVD）或质谱法（LC-MS）检测的液相色谱法。
CRM-dmMCLR的制备
[Da7]-微囊藻毒素-LR得自AgResearch有限公司（Hamilton，New Zealand）。毒素从微囊藻属的天然水华中提取（参见flos aquae），通过色谱法纯化并真空干燥。将一部分纯毒素溶解在50%CD3OH/H2O中，得[……]
CRM-dmMCLR去甲基微囊藻毒素LR校准溶液标准物质[Dha⁷]-Microcystin-LR结构确认 Read More »
脱氨甲酰基石房蛤毒素校准溶液标准物质预期用途
CRM-dcSTX-c是一种经过认证的校准溶液，专为dcSTX的分析方法开发和准确定量而设计。该浓度适用于制备稀释系列，用于通过柱前/柱后氧化荧光（LC-ox-FLD）或液相色谱-质谱（LC-MS）进行检测的液相色谱法，以及用于加标回收实验的对照样品。dcSTX
CRM-dcSTX-c储存和使用说明
为确保CRM-dcSTX-c的稳定性，安瓿应储存在+4°c的温度下。
打开前，应将每个安瓿加热至室温，并将内容物充分混合。安瓿应在预先划线的位置打开。应使用校准过的容量设备准确转移等分试样。如果溶液打开超过几分钟，则会因溶剂蒸发[……]
CRM-dcSTX-c脱氨甲酰基石房蛤毒素校准溶液标准物质制备步骤 Read More »