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Watchers HPLC column by ISUIND










  Ãµ¿¬¹° ºÐ¸® Á¤Á¦ ´Ü¹éÁú PROTEIN ÆéŸÀ̵å PEPTIDE ¾Æ¹Ì³ë»ê AMINOSAN À̼ö»ê¾÷ SPE SYRING FILTER TLC HPLC MPLC PREPLC FLASH CPC MACHEREY NAGEL INTERCHIM ARMEN WATHCERS ISUIND C18 C8 C4 C2 ODS NH2 Florisil aluminum oxide SAC SCX LH-20 SILICA DAC PREP CARTRIDGE TLC cutter watchers column
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¹øÈ£ Á¦¸ñ ±Û¾´ÀÌ ³¯Â¥ Á¶È¸
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NUCLEODUR¢ç high purity silica phases for HPLC
Features
NUCLEODUR¢ç °íµµÀÇ ¹°¸®Àû Ư¼ºÀ» Á¦°øÇÏ´Â ¿Ïº®ÇÑ ÇÕ¼º BŸÀÔ ½Ç¸®Ä«
(Á¦ 3¼¼´ëÀÇ ½Ç¸®Ä«)
¿ÏÀü ±¸Çü ÀÔÀÚÀÇ ÇüÅÂ
¿ì¼öÇÑ ¹Ì¼¼ Ç¥¸é
³ôÀº ¾Ð·ÂÀÇ ¾ÈÀü¼º
³·Àº ±Ý¼Ó ÇÔ·®
 
NUCLEODUR¢ç´Â ÃÖ÷´Ü ½Ç¸®Ä«·Î Çö´ë HPLCÀÇ ´Ü°è¸¦ ÀÌ»óÀûÀ¸·Î ¿Ã·Á ÁÙ
Àִ ¹°ÁúÀÔ´Ï´Ù. 
ºÐ¸®´ÉÀ» Áõ°¡½ÃÅ°±â À§ÇÑ ¹æ¹ý NUCLEODUR¢ç with 1.8 µm particle size  

Summary of available NUCLEODUR¢ç phases
Phase Modification % C pH range Particle sizes [µm] USP Structure
C18 Gravity octadecyl, high density coating, multi-endcapping 18 1–11 1.8 ¡¤ 3 ¡¤ 5 L1
C8 Gravity octyl, high density coating, multi-endcapping 11 1–11 1.8 ¡¤ 5 L7
C18 Isis octadecyl, specially cross-linked modification, endcapped 20 1–10 1.8 ¡¤ 3 ¡¤ 5 L1
C18 Pyramid octadecyl with polar endcapping 14 1–9 1.8 ¡¤ 3 ¡¤ 5 L1
PolarTec octadecyl with embedded polar group 17 1–9 3 ¡¤ 5 L1 L60
PFP pentafluorophenyl-propyl with multi-endcapping 8 1–9 3 ¡¤ 5 L43
Sphinx RP bifunctional, balanced ratio of propylphenyl and octadecyl, endcapping 15 1–10 1.8 ¡¤ 3 ¡¤ 5 L1 L11
C18 HTec octadecyl, high density coating, high capacity, multi-endcapping 18 1–11 1.8 ¡¤ 3 ¡¤ 5
7 ¡¤ 10
L1
C18 ec octadecyl, medium density, endcapping 17.5 1–9 3 ¡¤ 5
and larger
L1
C8 ec octyl, medium density, endcapping 10.5 1–9 3 ¡¤ 5 L7
HILIC ammonium – sulfonic acid 7 2–8.5 1.8 ¡¤ 3 ¡¤ 5  
CN/CN-RP cyano (nitrile) for NP and RP separations 7 1–8 3 ¡¤ 5 L10
NH2/NH2-RP aminopropyl for NP and RP separations 2.5 2–8 3 ¡¤ 5 L8
SiOH unmodified NUCLEODUR¢ç   3 ¡¤ 5
and larger
L3
 
 
NUCLEOSHELL core-shell silica phases for HPLC  
Features

NUCLEOSHELL
Core-shell technology:
ÀÌ»êÈ­ ±Ô¼ÒÀÇ °ß°íÇÑ ÇÙ
´Ù°ø¼º ½Ç¸®Ä«ÀÇ ±ÕÁúÇÑ ²®Áú
±âÁ¸°ú ´Ù¸¥ ÃÖ»óÀÇ È¿À²À» Á¦°ø
ÀÔÀÚ Å©±â°¡ 2.7¥ìmÀÇ (ÄÚ¾î 1.7 ¥ìm)
  ±âÁ¸ÀÇ LC¿¡¼­ »ç¿ë °¡´É
ÃÖ´ë 600 bar±îÁö ¾Ð·Â¿¡ ´ëÇÑ ¾ÈÀü¼º

NUCLEODUR¢ç
 
Summary of available NUCLEOSHELL phases
Phase Modification % C pH range Particle size [µm] USP Structure
RP 18 Octadecyl, multi-endcapping 7.5 1–11 2.7 L1
PFP Pentafluorophenyl, multi-endcapping ~ 3 1–9 2.7 L43
HILIC Ammonium – sulfonic acid 1.3 2–8.5 2.7
 
HPLC ºÐ¸®¿¡ ´ëÇÑ ¿ä±¸´Â Áö¼ÓÀûÀ¸·Î ºÐ¸® È¿À² ¹× °ËÃâ ÇÑ°è»Ó¸¸ ¾Æ´Ï¶ó, °¢°¢ÀÇ ºÐ¼®À» À§ÇÑ ½Ã°£ÀÌ ¿ä±¸ »çÇ׿¡ °ü·ÃÇÏ¿© Áõ°¡ÇÏ°í ÀÖ½À´Ï´Ù. ÄÚ¾î - ½© ±â¼ú Àº ¿¬±¸¿Í Ç°Áú °ü¸®ÀÇ È¿À²¼º Áõ´ë¸¦ À§ÇÑ »õ·Î¿î Ç¥ÁØÀ» ¼³Á¤ÇÕ´Ï´Ù.


Benefits of core-shell technology Core-shell particles vs.
totally porous silica gel
ªÀº È®»ê °æ·Î
ºü¸¥ ¹°Áú Àü´Þ(C term of the Van Deemter equation)
LC¿¡¼­ ³ôÀº À¯¼Ó¿¡¼­µµ ÇÇÅ© È®´ë°¡ ¾ø´Ù.
Á¼Àº ÀÔÀÚ Å©±â ºÐÆ÷ (d90/d10 ~ 1.1)
¾ÈÁ¤ÀûÀÎ ÆÐÅ·
Column efficiency of NUCLEOSHELL ~ 250000/m (HETP ~ 4 µm)
Minimized fractional heat


Resolution Rs as function of particle size
Columns: 50 x 4 mm
NUCLEOSHELL RP 18, 2.7 µm
NUCLEODUR¢ç C18 Gravity, 3 µm
NUCLEODUR¢ç C18 Gravity, 1.8 µm
Eluent:
Flow rate:
Temperature:
Detection:
acetonitrile – water (60:40, v/v)
1 mL/min
25 ¡ÆC
UV, 254 nm
Peaks:
1. Naphthalene
2. Ethylbenzene
Better resolution at
lower back pressure and
shorter retention time
 
NUCLEOSIL¢ç standard silica phases for HPLC
Features
NUCLEOSIL¢ç ¼øµµ°¡ ³ô°í ±ÕÀÏÇÑ SIO2 ±¸Á¶·Î ¿Ïº®ÇÑ ´Ù°ø¼º ±¸Çü ½Ç¸®Ä«
Å©·Î¸¶Åä±×·¡ÇÇ ºÐ¾ß¿¡¼­ ÀϹÝÀûÀ¸·Î »ç¿ëµÇ´Â ½Ç¸®Ä«
HPLCºÐ¾ß¿¡¼­ ÃÖÃÊ·Î »ç¿ëµÈ ±¸Çü ½Ç¸®Ä«
70³â´ë¿¡ °³¹ßµÇ¾î Áö±Ýµµ ¼¼°èÀûÀ¸·Î »ç¿ëµÇ´Â HPLC ÆÐÅ·¿ë ½Ç¸®Ä«
HPLC¿¡¼­ ½Å·ÚÇÒ ¼ö ÀÖ´Â Á¦Ç°
HPLC¿¡¼­ °¡Àå ´Ù¾çÇÏ°Ô »ç¿ëÇÒ ¼ö ÀÖ´Â ½Ç¸®Ä«
Summary of available NUCLEOSIL¢ç phases
Phase Modification Formula
RP phases
NUCLEOSIL¢ç C18 medium density octadecyl, endcapped -(CH2)17-CH3
NUCLEOSIL¢ç C18 AB crosslinked octadecyl, endcapped, high steric selectivity -(CH2)17-CH3
NUCLEOSIL¢ç C18 HD high density octadecyl, endcapped -(CH2)17-CH3
NUCLEOSIL¢ç C18 Nautilus hydrophilic octadecyl, embedded polar group, endcapped -(CH2)17-CH3
NUCLEOSIL¢ç Protect I special RP phase with protective polar group, endcapped  
NUCLEOSIL¢ç C8 ec medium density octyl, endcapped -(CH2)7-CH3
NUCLEOSIL¢ç C8 standard octyl, not endcapped -(CH2)7-CH3
NUCLEOSIL¢ç C8 HD high density octyl, endcapped -(CH2)7-CH3
NUCLEOSIL¢ç C4 medium density butyl, endcapped -(CH2)3-CH3
NUCLEOSIL¢ç C2 dimethyl -(CH3)2
NUCLEOSIL¢ç C6H5 standard phenyl, not endcapped -(CH2)3-C6H5
Polar phases
NUCLEOSIL¢ç CN cyanopropyl (nitrile) -(CH2)3-CN
NUCLEOSIL¢ç OH diol (dihydroxypropyl) -(CH2)3-O-CH2-CH(OH)-CH2OH
NUCLEOSIL¢ç NH2 aminopropyl -(CH2)3-NH2
NUCLEOSIL¢ç N(CH3)2 dimethylamino -(CH2)3-N(CH3)2
NUCLEOSIL¢ç SA benzenesulfonic acid, strongly acidic cation exchanger (SCX) -(CH2)3-C6H4-SO3Na
NUCLEOSIL¢ç SB quaternary ammonium groups, strongly basic anion exchanger (SAX) -(CH2)3-C6H4-CH2-N+(CH3)3Cl
NUCLEOSIL¢ç SiOH unmodified (SiO2)n
 
HPLC phases for special applications  
Summary  

  Field of application Products
»ý¹°ÇÐÀû °íºÐÀÚ ion exchange and RP phases
°Å¿ï»óÀ̼ºÁúü ºÐ¸® NUCLEOCEL, NUCLEODEX, NUCLEOSIL CHIRAL, RESOLVOSIL
ȯ°æºÐ¼® PAH separation, analysis of anions
½ÄÇ°ºÐ¼® sugar separations
  GPC of water-insoluble substances NUCLEOGEL GPC columns
 
 
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õ¿¬¹° ºÐ¸® Á¤Á¦ ´Ü¹éÁú PROTEIN ÆéŸÀ̵å PEPTIDE ¾Æ¹Ì³ë»ê AMINOSAN À̼ö»ê¾÷ SPE SYRING FILTER TLC HPLC MPLC PREPLC FLASH CPC MACHEREY NAGEL INTERCHIM ARMEN WATHCERS ISUIND C18 C8 C4 C2 ODS NH2 Florisil aluminum oxide SAC SCX LH-20 SILICA DAC PREP CARTRIDGE TLC cutter watchers column