久久5-久久4-久久3-久久2019-一个人hd高清在线观看免费一-一个人hd高清在线观看免费

標準品/DL-(±)-精氨suan鹽酸鹽

  • 型   號:709964-10mg
  • 類   別:純品標準品
  • 價   格:100

標準品/DL-(±)-精氨suan鹽酸鹽
產品編號:709964-10mg
CAS號:32042-43-6
規格:10mg
有效期:2025-04-10
品牌:TMstandard
標準值:97.7%

分享到:

資料下載

DL-(±)-精氨suan鹽酸鹽

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) DL-(+/-)-Arginine Hydrochloride(DL-(±)-精氨suan鹽酸鹽)
Product Code(產品編號)709964-10mg
 
Lot Number(產品批號)-
 
CAS No.32042-43-6
 
Mol. Weight(分子量)210.66
 
Mol. Formula(分子式)C6H14N4O2·HCl
 
Melting Point(熔點)200-202℃(dec.)
 
Expiry Date(失效日期)2025-Apr-10
 
Boiling point(沸點)N/A
 
Appearance(外觀)White to Off-White Solid
(白色固體)__
 
Storage Temp(存儲條件)(2~8)℃,Keep in the shade
冷藏(2~8)℃,置于陰涼處
C E R T I F I E D
Purity
97.7%
 
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

Nonaqueous Titration

Batch Information

Water Content by Karl-Fischer Titration: 1.5%

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: 四虎永久在线精品国产 | 日本一区二区三区有限公司 | 久久国产精品99国产精 | 国产中文在线 | 伊人久久青草青青综合 | 成人看片黄a在线看 | 日韩亚洲欧美一区噜噜噜 | 三级毛片在线免费观看 | 亚洲 欧美 卡通 在线 另类 | 91在线播放网站 | 99在线视频播放 | 亚洲天堂男人网 | 青青网在线视频 | 99国产精品热久久久久久夜夜嗨 | 在线a久青草视频在线观看g | 在线欧洲成人免费视频 | 黄色在线免费观看网站 | 日韩成人影视 | 亚洲一区欧美二区 | 在线看欧美| 色男人社区 | 亚洲一级片免费 | 国产成人a一在线观看 | 日韩一区国产一级 | 国产青青在线 | 国产色视频在线观看免费 | 国产极品美女网站在线观看 | 四虎永久 | 老外一级毛片免费看 | 国产偷国产偷亚洲高清午夜 | 一区二区视频在线 | 亚洲欧美国产精品第1页 | 亚洲第一成人在线 | 色综合五月天 | 天天操天天摸天天舔 | 亚洲精品手机在线 | 日韩日韩 | 久久久婷 | 国产精品合集一区二区三区 | jizz老妇乱 | 午夜视频免费观看黄 |