邻苯二甲酸二异癸酯_单标_有机类_标准物质_萘析商城

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邻苯二甲酸二异癸酯

BW903026

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26761-40-0

0.5mL

秦境

99.0%

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邻苯二甲酸二异癸酯介绍：

Reference Material

This certificate is designed in accordance with ISO17034 and ISO Guide 31. This reference material (RM) was designed,produced andverified in accordance with ISO/IEC 17025, ISO 17034 and a registered qualitymanagement system ISO9001.

Product Name	Diisodecyl phthalate
Product Code	BW903026
Lot Number	23061558
CAS No.	26761-40-0
Mol. Formula	C₂₈H₄₆O₄
Mol. Weight	446.66
Certified on	19 Jun 2023
Expiry Date	18 Jun 2025
Storage Temp	20°C ± 4°C
Specification	0.5mL

CERTIFIED

Purity

CERTIFIED

Expanded Uncertainty (U)

Approved by

99.0%

0.5%

Uncertainty

The certified value(s) and uncertainty(ies) aredetermined in accordance with ISO 17034 with an 95% confidence level (k=2).Uncertainty is based on the Total Combined Uncertainty, including uncertaintiesof characterisation, homogeneity and stability testing. Stability values arebased on real evidence opposed to simulation.

The producer certifies that this reference materialmeets the specification stated in this certificate until the expiry date,provided it is stored unopened at the recommended temperature herein. Productwarranties for this reference material are set out in the terms and conditionsof purchase.

Intended Use

This RM is intended for use in a laboratory as acalibration and quality control standard or in method development foranalytical techniques.

Safety

Proper precautions should be observed whilehandling. See Safety Data Sheet.

Traceability

The balances used for gravimetric measurements arecalibrated with weights traceable to the national standards (DKD). Thecalibration of the balances is verified daily internally and annually by anexternal7 accredited calibration service. Chromatographic methods are traceableto the International System of Units (SI).

Homogeneity

Random replicate samples of the final packaged RMhave been analysed to prove homogeneity compliant with ISO 17034.

Storage

The RM should be stored in the original sealedcontainer at the indicated temperature.

Instructions for use

It is recommended to use 1 mg as the minimum samplesize and if less material is used, to increase the certified uncertainty by afactor of two for half sample and four for a quarter of sample. If storageafter opening is necessary, the RM should be tightly closed and kept from lightand moisture. If the RM was in a sealed ampoule, it should be transferred to avial with minimum head space.

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标准名称及标准号

GB/T 20388-2016	纺织品中邻苯二甲酸酯的测定
GB/T 22048-2015	玩具及儿童用品中邻苯二甲酸酯的测定

适用范围

GB/T 20388-2016适用于纺织品及其制品中邻苯二甲酸酯类增塑剂的定量分析；
GB/T 22048-2015适用于塑料玩具、儿童用品等材料中邻苯二甲酸酯的检测，包括DIDP（CAS:26761-40-0）。

核心检测方法

均采用气相色谱-质谱联用法（GC-MS）：
1. 样品经索氏提取或超声波萃取后净化；
2. 采用DB-5MS色谱柱分离，SIM模式检测；
3. 同位素内标法或外标法定量。

检出限与定量限

GB/T 20388-2016：DIDP检出限为0.5 mg/kg，定量限为1.0 mg/kg；
GB/T 22048-2015：DIDP方法检出限为0.1 mg/kg，定量限为0.5 mg/kg。

质控样品要求

1. 每批次样品需包含空白对照和加标平行样；
2. 加标回收率需控制在70%-120%；
3. 使用有证标准物质验证方法准确性。

关键实验步骤

1. 样品粉碎后过0.5 mm筛；
2. 使用正己烷超声萃取30分钟；
3. 浓缩后经0.22 μm滤膜过滤；
4. GC-MS进样量1 μL，分流比10:1。

特别说明

1. 需注意DIDP与同系物的色谱分离；
2. 避免使用含邻苯二甲酸酯的塑料实验器具；
3. 实验温度需控制在25℃以下防止挥发损失。

以上信息仅供参考，请以相应标准的原文为准！