国产一级毛片高清视频在线-国产一级久久久久久毛片-国产一级精品视频-国产一级黄色影片-亚洲第一区二区快射影院-亚洲第一区第二区

標準品/磺an吡啶

  • 型   號:71129-100mg
  • 類   別:純品標準品
  • 價   格:120

標準品/磺an吡啶
產品編號:71129-100mg
CAS號:144-83-2
規格:100mg
有效期:2028-02-28
品牌:TMstandard
標準值:99.9%

分享到:

資料下載

磺an吡啶

Reference Material

This certificate is designed in accordance with ISO 17034 and ISO Guide 31. This reference material (RM) was designed,produced and verified in accordance with ISO/IEC 17025ISO 17034 and a registered quality management system ISO 9001.

Product Name(產品名稱) Sulfapyridine(磺胺bi啶)
Product Code(產品編號)71129-100mg
 
Lot Number(產品批號)-
 
CAS  .144-83-2
 
Mol. Weight(分子量)249.29
 
Mol. Formula(分子式)C11H11N3O2S
 
Melting Point(熔點)194-196℃(dec.)
 
Expiry Date(失效日期)2028-Feb-28
 
Boiling point(沸點)N/A
 
Appearance(外觀)Solid
(固體)________________
 
Storage Temp(存儲條件)(2-8)℃,Keep in the shade
(2~8)℃冷藏,置于陰涼處
 
Transportation(運輸條件)Normal temperature transportation
C E R T I F I E D
Purity
99.9%
 
C E R T I F I E D
Expanded Uncertainty (U)
0.5%
Uncertainty

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

Traceability

The balances used for gravimetric measurements are calibrated with weights traceable to the national standards. The calibration of the balances is verified annually by an external accredited calibration service. This analysis method has been verified using an approach consistent with ISO 17034:2016 & ISO 17025:2017.

CERTIFICATE    ONQC    SIGNATURE
-RM Release
Method of Identification

HPLC


Intended Use

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

Storage

This reference material meets the specification stated in this certificate until the expiry date, provided it is stored unopened at the recommended temperature here in. If storage after opening is necessary, the RM should be tightly closed and kept from light and moisture.

Hazards

Read Material Safety Data Sheet (MSDS) and understand any potential hazard(s) prior to the use of this product. All chemicals should be considered potentially hazardous in nature and should only be handled by qualified personnel using established good laboratory practices.

Homogeneity

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

Instructions for use

It is recommended to use 1 mg as the minimum sample size and if less material is used, to increase the certified uncertainty by a factor of two for half sample and four for a quarter of sample.Visit the support section of our website technology videos and frequently asked questions.


壇墨質檢
  • 電話

    4008-099-669

    手機

    18168802993

在線客服
主站蜘蛛池模板: 五月天丁香网| 一级毛片视频播放| 最新欧美日韩| 成人国产精品久久久免费| 国产呦系列 欧美呦 日韩呦 | 欧美日韩大尺码免费专区| 国产激情一区二区三区成人91| 亚洲国产成人久久一区久久 | 成人久久久观看免费毛片| 九九51精品国产免费看| 国产精品高清视亚洲一区二区| 在线观看日韩欧美| 午夜视频在线观看免费视频| 成人免费视频77777| 国产亚洲精品片a77777| 国产一区免费在线观看| 精品国产一区二区三区成人| 免费一看一级毛片| 国产一区 在线播放| 国产欧美一区二区三区在线| 亚洲欧美第一| 手机在线观看国产精选免费| 亚洲高清专区| 最新国产视频| 欧美精品久久天天躁| 日韩欧美电影在线观看| 性xxxxfreexxxxx国产| 久久91精品国产91久久小草| 国产成人高清一区二区私人| 国产精品一区二区综合| 欧美高清视频在线| 国产精品成人va| 亚洲全黄| 国产爱搞| 久久国产精品视频| a毛片免费| 亚洲 欧美 手机 在线观看| 亚洲国产成人久久综合一区| 成人毛片一区二区三区| 欧美日在线| 看真人视频一级毛片|