国产一精品一av一免费,灌牛奶cao哭男男腐纯肉打屁股,男女免费观看做爰视频在线观看,无码一级做a爱国产免费

歡迎來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   >  產(chǎn)品中心  >  Ultrasep ES液相色譜柱  >  Ion Exchangers(離子交換)  >  Anion Exchanger SAX W33 (Ascorbic Acid)

Anion Exchanger SAX W33 (Ascorbic Acid)

簡要描述: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:
  • 廠商性質(zhì):生產(chǎn)廠家
  • 更新時(shí)間:2024-08-07
  • 訪  問  量:2193

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)充說明:

  • 驗(yàn)證碼:

    請輸入計(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

網(wǎng)站二維碼

日本一区二区中文字幕视频| 蜜臀AV精品一区二区三区| 天天干视频网站| 日韩精品无码中文字幕第一区 | 日韩区二区三区在线观看| 久久香高清无码| 日韩精品一区二区三区| 精品国产三级片| 亚洲一区二区三区在线电影| 亚洲国产av无码精品无广告| 强壮的公次次弄得我高潮a片小说| 开心色| 欧美爆乳巨大XXX000HD| 亚洲色图偷拍自拍欧美激情| 国产精品亚洲欧美大片在线观看| 亚洲成精品动漫久久精久| 国产精品无码亚洲AV一区| 三年片在线观看免费观看大全| 成年人在线视频播放网址| 免费观看视频app| 亚洲 日本 韩国 欧美| 精品国产v一区二区三区| 成人a影片免费在线播放| 姐姐的朋友电影| 成人午夜做爰高潮片免费| 无码视频一区二区三区在线观看 | 久久骚婷婷精品一区二区| 国产视频污污污在线观看| 少妇愉情理伦片高潮日本| 国产精品1000部视频| 婷婷色婷婷开心五月四房播播| 啪啪啪国产一区二区三区| 国产精品96久久久久久AV不卡| 中文字幕导入是乱码ma| 久久99国产精品成人| 超短被强行侵犯在线观看| 欧美特黄一级片久久久久| 国产精品一区网站在线观看| 日韩极品精品一区二区三区| 和朋友玩换娶妻当面做小说| 中国极品艳妇av少妇hd|