国产精品VⅠDEOXXXX国产,AV熟女人妻一区二区三区,JULIA无码人妻中文字幕在线,小雪被老汉各种姿势玩弄

歡迎來(lái)到上海宸喬生物科技有限公司網(wǎng)站!
咨詢熱線

18801803238

當(dāng)前位置:首頁(yè)   >  產(chǎn)品中心  >  Ultrasep ES液相色譜柱  >  Ion Exchangers(離子交換)  >  Anion Exchanger SAX NN (Rapid Determination of Nit

Anion Exchanger SAX NN (Rapid Determination of Nit

簡(jiǎn)要描述:These anion exchangers are so called ?permanently loaded“ ion exchangers. They exhibit the excellent performance of silicas and the good stability of RP-phases, which leads to low costs.

  • 產(chǎn)品型號(hào):
  • 廠商性質(zhì):生產(chǎn)廠家
  • 更新時(shí)間:2024-08-07
  • 訪  問(wèn)  量:1416

詳細(xì)介紹

 

Anion Exchangers

 

UltraSep ES SAX W (Anorganic ions according to DIN 38405)

  

These anion exchangers are so called „permanently loaded“ ion exchangers. They exhibit the excellent performance of silicas and the good stability of RP-phases, which leads to low costs.

Stability of UltraSep ES SAXW with phthalic acid/TRIS buffer (1.25/2.5 mM) at pH 6.4

  

Permanently loaded ion exchangers are not only useful to separate inorganic ions (see Application ANION1) but also to separate natural products with aqueous buffers (nucleotides). They cannot be used with organic-aqueous eluents

Our permanently loaded ion exchangers are easily to regenerate. For this, we offer a special solution or a regeneration in our firm. 

If there is a need to chromatograph aqueous solutions highly contaminated with organic material, we recommend to use additionally a RP precolumn (length 33 mm) in front of the precolumn cartridge ( ANION2 Tap water from Berlin).

By lowering of the strength of the eluent, phosphate appears between nitrite and bromide without the necessity to increase the pH noticeably  In this way, there are good conditions for the conductivity detection too. Furthermore, fluoride is well separated from the injection peak (see Application ANION3).

    
 

UltraSep ES SAX W Quick Columns

  

See Applications ANION5 and ANION6

 

UltraSep ES SAX W33 (Determination of ascorbic acid)

  

See Applications ANION9

 

UltraSep ES SAX NN (Rapid determination of nitrite, nitrate, and bromide in drinking water and foodstuffs)

  

By this exchanger concentrations of nitrite and nitrate can be determined considerably faster and more sensitive than with customary methods. Nitrate, which can be determined by the photometric method only relatively insensitively, is determined by chromatography at 220 nm without previous enrichment to 0.1 mg/l. Bromide is determined at 210 nm with high sensitivity.

Iodide can be determined also directly at 225 nm. For a quick determination of iodide you can use a column of  UltraSep ES SAX NN with a length of 33 mm.

The selectivity and rapidity of the determination (phosphoric acid as eluent) can be changFor columns with endcapped packings an additional charge of 10.00 € is calculated.  ed by the pH value (at best pH 3 – 5). Furthermore,  the velocity of elution can also be varied by the concentration of phosphoric acid (at best 10 – 30 mM; see Application ANION4).

   
 

UltraSep ES RP NN (Determination of nitrite, nitrate, bromate and bromide in drinking water and foodstuffs)

  See Applications ANION7 and ANION8

 

 

Examples of Analyzed Compounds

Analyzed in Application
(AN = ANION)

Go to

 

Ascorbic acid

AN9

ANION1

 

Bromate

AN7, AN8

ANION2
 

Bromide

AN1, AN3, AN4, AN5, AN6, AN7

ANION3

 

Carbonate

AN2

ANION4

 

Chloride

AN1, AN2, AN3, AN5, AN6

ANION5

 

Fluoride

AN3

ANION6

 

Nitrate

AN1, AN3, AN4, AN5, AN6, A7

ANION7

 

Nitrite

AN1, AN3, AN4, AN5, AN6, A7

ANION8

 

Phosphate

AN3, AN6

ANION9

 

Sulfate

AN1, AN2, AN3, AN5, AN6

 

 

 

 

 

 

 

 

 

 

COLUMNS and  PRICES  ()
 Column size (mm)
150 x 3125 x 360 x 333 x 3
UltraSep ES SAX W 270.00  
UltraSep ES SAX W Guard column RP 18 *   125.00
UltraSep ES SAX W QC  255.00250.00
UltraSep ES SAX QCM 270.00  
UltraSep ES SAX NN  265.00245.00
UltraSep ES RP NN240,00240,00  
UltraSep ES SAX W33 295,00  
* Recommended as precolumn for samples with high content of organic substances.

 

Size (mm)

 
  10 x 35 x 3 ***  
Precolumn cartridges
(Price per pack = 5 pieces)
 170.00170.00
Activator for ES SAX W (1 ml)12.00  
Regeneration solution (30 ml) for regeneration by customer33.00  
*** Only for UltraSep ES SAX W QC.

產(chǎn)品咨詢

留言框

  • 產(chǎn)品:

  • 您的單位:

  • 您的姓名:

  • 聯(lián)系電話:

  • 常用郵箱:

  • 省份:

  • 詳細(xì)地址:

  • 補(bǔ)充說(shuō)明:

  • 驗(yàn)證碼:

    請(qǐng)輸入計(jì)算結(jié)果(填寫(xiě)阿拉伯?dāng)?shù)字),如:三加四=7

聯(lián)系我們

上海宸喬生物科技有限公司 公司地址:上海市阿克蘇路1187號(hào)516室   技術(shù)支持:化工儀器網(wǎng)
  • 聯(lián)系人:王經(jīng)理
  • QQ:3004300903
  • 公司傳真:021-59100893-802
  • 郵箱:sales@keyanwang.com.cn

掃一掃 更多精彩

微信公眾號(hào)

網(wǎng)站二維碼

被主人惩罚在惩戒室SM| 少妇被大黑捧猛烈进出动态图| 年轻丰满的继牳4伦理| 18禁黄污吃奶免费看网站| 在线观看大片免费播放器| 无码精品AV久久久免费| 人妻AV无码一区二区三区| 正面偷拍女厕36个美女嘘嘘| 国产露脸无码A区久久| 国产水蜜桃精品| 欧美最猛黑人XXXXX猛交| 永久免费观看不收费的软件5| 娇妻跪趴高撅肥臀出白浆| 欧美性猛交XXXX乱大交| 成人无码亚洲精品啪啪网站| 少妇与公做了一夜伦理| 国产黄在线观看免费观看不卡| 特黄把女人弄爽又大又粗| 欧美久久久无码精品亚洲日韩小说| 熟妇与小伙子MATUR老熟妇E| 久久精品国产亚洲AV无码麻豆 | 熟妇人妻中文字幕| 狠狠色噜噜狠狠狠狠7777| 我和公发生了性关系视频| 乱码AV午夜噜噜噜噜| 50岁女人下边很紧| 成人私人做网站| 最近韩国日本免费观看MV| 被猛男伦流澡到高潮H视频| 乱人伦XXXX国语对白| 体育老师在单杠C了我一节课| 成人精品视频一区二区三区尤物 | 久久99精品国产99久久6尤物| 婷婷国产成人精品视频小说 | 一炕四女被窝交换啪啪| 人C交ZO○ZOOXX全过程| 少妇高潮喷水惨叫久无码一区二区 | YELLOW日本高清免费中文| 竹菊精品久久久久久久99蜜桃| 国产亚洲高清国产拍精品| 国产又爽又粗又猛的视频|