22 Mix primary aromatic amines in acetonitrile | Organic pollutants (water and air)

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22 Mix primary aromatic amines in acetonitrile View Certificate

This product can be used as a working standard for daily analysis and testing; It can also be used for laboratory quality control such as test method evaluation and instrument calibration.

1、Traceability and value determination method

The standard value is verified by . The traceability of the product quantity value is ensured through the use of production, measurement methods and measuring instruments that meet the requirements of metrological characteristics.

2、Characteristic value and expanded uncertainty

No	Analyte	CAS	Standard value	Uncertainty(k=2)	Matrix
1	o-Aminoazotoluene	97-56-3	300μg/mL	4%	Acetonitrile
		2-Amino-4-nitrotoluene	99-55-8	300μg/mL		4%
		4-Chloroaniline	106-47-8	300μg/mL		4%
		2,4-Diaminoanisole	615-05-4	300μg/mL		4%
		4,4'-Methylenedianiline	101-77-9	300μg/mL		4%
		3,3'-Dichlorobenzidine	91-94-1	300μg/mL		4%
		3,3'-Dimethoxybenzidine	119-90-4	300μg/mL		4%
		3,3'-Dimethylbenzidine	119-93-7	300μg/mL		4%
		4,4 '- Diamino-3,3' - Dimethyldiphenylmethane	838-88-0	300μg/mL		4%
		2-Methoxy-5-methylaniline	120-71-8	300μg/mL		4%
		4,4'-Methylene bis-2-chloroaniline	101-14-4	300μg/mL		4%
		4,4'-Oxydianiline	101-80-4	300μg/mL		4%
		4,4 '- Thiodianiline	139-65-1	300μg/mL		4%
		o-Toluidine	95-53-4	300μg/mL		4%
		2,4-Dimethyl aniline	95-68-1	300μg/mL		4%
		2,6-Dimethylaniline	87-62-7	300μg/mL		4%
		4-Amino-3-fluorophenol	399-95-1	300μg/mL		4%
		o-Anisidine	90-04-0	300μg/mL		4%
		4-Aminoazobenzene	60-09-3	300μg/mL		4%
		2,4-Diaminotoluene	95-80-7	300μg/mL		4%
		2,4,5-Trimethylaniline	137-17-7	300μg/mL		4%
		Aniline	62-53-3	300μg/mL		4%

3、Uniformity test and stability investigation

According to ISO 33405 metrology technical specification, the samples are randomly sampled after packaging, and the uniformity test and long-term stability tracking of the product are carried out by . The results show that the uniformity meets the F test rules and has good stability.

The quantitative value of this product is valid for 18 months from the date of value determination. The research and development unit will continue to track and monitor the stability of the product. If the value changes during the validity period, the user will be notified in time.

4、Packaging storage and use

Packaging: This product is packaged in Brown ampoule, with the specification of 1.2mL. It should be protected from breaking when carried or transported.

Storage: and in the sealed and light-proof conditions. Before use, it should be （20±3）℃℃ fully shaken to ensure homogeneity. This product should be used as soon as possible after being opened. During the use process, strict precautions should be taken to prevent contamination.

Form	Liquid State
Stroma	Acetonitrile
Packing	Brown ampoule
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