a级毛片无码久久精品免费,偷妻之寂寞难耐2中文字幕,FREE紧VIDEOXX粗又长,精品久久久无码中文字幕

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:1564

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

女人下部毛毛高清| 妽妽的下边好紧春雨医生| 风韵多水的老熟妇| 潘金莲全集1一5集正版| 国产特黄级aaaaa片免| 日韩精品视频| 欧洲尺码日本尺码专线美国特价 | 护士奶头又白又大又好摸视频| 亚洲精品巨爆乳无码大乳巨| 纯肉高H啪动漫| 亚洲白嫩小受男同GV在线观看| 国产免费无码又爽又刺激A片| 无码AV天堂一区二区三区| 人人爽人人爽人人片AV免费人成| 18禁高潮出水呻吟娇喘MP3| 亚洲一区二区自偷自拍另类 | 高大丰满肥熟妇丰满大白屁股| 国产精品99久久免费观看| 亚洲女人被黑人巨大进入| 小蓝视频男男勇敢做自己最新| 久久精品一区二区三区四区| 女人下面突然一紧一紧的| 国产绳艺SM调教室论坛| 特黄AAAAAAA片免费视频| 精品国产福利在线观看| 我的变态室友(H)三攻一受| 丽娟两腿间一大丛黑毛| 久久精品国产一区二区三| 国产精品一区二区三区| 欧美激情肉欲高潮视频| 国产在线观看| 国产精品成人无码久久久| 天堂在/线资源中文在线| 亚洲成A人片在线观看中文| A片在线免费观看| 国产精品美女WWW爽爽爽视频| 国产精品乱码一区二三区| 被夫の上司持久侵犯耻辱在线| 耽肉高H喷汁呻吟体育生| 国外免费的b2b网站| 久久人人爽人人人爽成人AV片|