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Sample
Injectors
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1. HPLC AutoSamplers
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From
built-in sample preparation capabilities
to an integrated column oven, Varian HPLC
AutoSamplers offer great performance and
value.
High-resolution
syringe design for maximum reproducibility
Extensive
variety of sample tray and vial types for
full flexibility
Cooling
and biocompatible options available
Easy-access
needle, injector valve, and syringe for
quick maintena nce
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Application
Type
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Analytical
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Preparative
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Biochromatography
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400
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410
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410
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410
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420
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420
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430
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430
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Easy
Operation Varian sample-handling
devices have simple, intuitive control interfaces, and
can be controlled from the module¡¯s keypad or from
a Data System, greatly improving ease-of-use and program
ming
capabilities.
Easy
Maintenance Special attention is
given to achieving high MTBF (Mean Time Between Failure)
and providing timely instrument service when needed.
Varian HPLC AutoSamplers monitor syringe and inject
ion
valve operation and alert you before injection performance
degrades or fails.
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2. 400 AutoSampler
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The
400 is an economical, high-capacity autosampler specifically
for automated, routine LC requirements in pharmaceutical,
basic chemical, and environmental applications. Like
more expensive autosamplers, it boasts a small footprint,
high throughput, and rugged design—-all at a surprisingly
low price.
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Performance
96-sample
capacity makes the 400 very efficient for high throughput,
HPLC quality control procedures.
Unique
finger valves economize the volume of sample required
for precise loop fill injections.
A
single key stroke makes it easy to start routine automated
runs.
Automatic
calculation of the total and remaining run times improves
laboratory efficiency.
Four
removable racks allow sample preparation while the unit
is running.
A
standard electrically actuated Valco valve with easy
access allows quick servicing.
Separate
wash vials assure minimal carryover for the best results.
Optional
5 mL vials allow injection of larger sample volumes.
An
optional cooling accessory is available for critical
temperature sensitive applications.
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3. 410 HPLC AutoSampler
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With
variable injection volumes and automixing/autodiluting,
the ProStar 410 is perfect for laboratories
with changing needs. It provides flexible
operation without sacrificing reliability
or performance.
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Performance
Multiple
injection modes offer flexibility, ease of use, and
precision. Choose from:
Full
loop fill — overfills the sample loop for maximum
precision.
Partial
loop fill — allows you to easily program variable
injection volumes.
Microliter
pickup —withdraws the exact amount to be injected
without sample loss.
Sample
trays are available in three configurations: 96 standard
2-mL vials; 84 standard 2-mL vials plus three 10-mL
vials used for mix solvents; or 24 10-mL vials for large
injection volumes. These trays can be interchanged in
under a minute.
Internal
standard addition, sample dilution, or derivatization
steps are easily programmed to reduce sample preparation
time and errors associated with manual procedures.
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4.
430 AutoSampler
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The
430 AutoSampler is Varian's most versatile
HPLC injection system. Compatible with all
types of 96- or 384-well plate formats as
well as standard HPLC vials, the 430 is
ideal for any of today¡¯s demanding HPLC
applications.
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Performance
Accommodates
variable well plate sample trays -- While the 430 handles
a wide variety of well plates, it also holds conventional
2-ml HPLC vials. With a touch of a button, quickly select
from 96-deep-well plates, standard 96-well plates, 384-well
plates, PCR tubes, or 48 standard vials. Ideal
for high throughput LC and LC-MS -- fast cycle times
allow analysis of more than 1,500sam ples a day.
Metal-free
sample path for sensitive samples -- A completely biocompatible
PEEK injection valve and sample needle are available.
For
precise sampling, the vial is slightly pressurized by
an internal compressor while the syringe drive mechanism
accurately draws the desired volume into the valve's
loop. Without sample loss, the microliter pick-up technique
positions the sample plug into the center of the loop.
Precise,
reliable injections -- The 430 AutoSampler¡¯s breakthrough
loop injection technique with Pressure Assisted Sampling
(PAS) combines precision with simplicity in a highly
reliable design. PAS eliminates air bubble problems
and sample contamination because it doesn¡¯t use a needle
port that can easily wear out. The 430 AutoSampler¡¯s
high-resolution syringe drive partitions syringe movement
into 0.004-µl steps and achieves incredible injection
precision at 1 µl or less. Choose
from three injection modes -- 1. Full loop injection
mode: when there is excess sample, the 430 overfills
the installed injection loop for the best reproducibility
(RSD < 0.3%). 2. Partial loop-fill injection mode:
programmable injections from 1 µ l to 60% of loop
volume offer precision (RSD < 0.5%) and minimize
sample loss. 3. Microliter pickup injection mode: the
exact injection volume is sampled. Then, a wash solvent
positions the sample into the loop. There is no sample
loss and reproducibility is better than 1.0% RSD.
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5.
Injection valve
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Switching
Valve A 35MPa(5000psi)±îÁöÀÇ
¾Ð·Â¿¡¼ À̵¿»óÀÇ flow Áß´Ü ¾øÀÌ(pumpÀÇ
Á¤Áö ¾øÀÌ) Ä÷³ switchingÀ¸·Î
À¯¾Ð°æ·Î¸¦ º¯°æÇÕ´Ï´Ù. ¿¬°á Çü½Ä¿¡ µû¶ó¼
ÃÖ´ë 6°³ÀÇ inlet°ú ÇÑ °³ÀÇ outlet switchingÀ¸·Î,
¶Ç´Â ÃÖ´ë 6 outlet°ú
ÇÑ °³ÀÇ inlet switchingÀ¸·Î »ç¿ëµË´Ï´Ù.
Ç¥ÁØ accessory·Î´Â 10-32
thread stainless steel nut¿Í 1/16¡° stainless
steel ferruleÀÌ ÀÖ½À ´Ï´Ù.
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Preparative
Injection Valve B ÀϹÝÀûÀ¸·Î
preparative chromatography¿¡¼ ¸¹Àº ¾çÀÇsample(injection
loop¸¦ ÀÌ¿ëÇÏ¿© ¹Ð¸®¹ÌÅÍ
±îÁö)À» À̵¿»ó¿¡ ¿¬¼ÓÀûÀ¸·Î ÁÖÀÔÇϴµ¥ »ç¿ëµË´Ï´Ù.
ÃÖ´ë ¾Ð·ÂÀº 35MPa(5000 psi)ÀÔ´Ï´Ù.
valve
B¿¡ ´ëÇÑ injection system°ú sample loop´Â
¿É¼Ç»çÇ×ÀÔ´Ï´Ù. valve B´Â 3 x 2 switching
valve·Îµµ »ç¿ëÀÌ °¡´ÉÇÕ´Ï´Ù. Ç¥ÁØ accessory·Î´Â
10-32 thread stainless steel nut¿Í 1/6¡°
stainless steel ferruleÀÌ ÀÖ½À´Ï´Ù.
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Analytical
Injetion Loop Valve D 35MPa(5000
psi)±îÁöÀÇ ¾Ð·Â¿¡¼ HPLC application¿¡ »ç¿ëµË´Ï´Ù.
loop´Â Hamilton»çÀÇ HPLC¿ë needleÀ̳ª accessory·Î
Á¦°øµÈ LUER syringe¸¦ ÀÌ¿ëÇÏ¿© ÃæÀüµÇ¾î¾ß
ÇÕ´Ï´Ù. injection valve D´Â valve°¡ INJECT
À§Ä¡·Î ¹Ù²î¾úÀ» ¶§ chromatography station°ú
ÇÁ·Î±×·¥ÀÌ °¡´ÉÇÑ Àåºñ¸¦ µ¿½Ã¿¡ ½ÃÀÛÇÏ´Â
½ºÀ§Ä¡±â´ÉÀ» °¡Áö°í ÀÖ½À´Ï´Ù. accessory·Î´Â
¹è¼ö¿ë capillary, 10-32 thread stainless
steel nut, 1/16" stainless steel ferrule,
LUER hub needle, ±×¸®°í connector°¡ ´Þ¸°
switch ÄÉÀ̺íÀÔ´Ï´Ù. sample loop´Â ¿É¼ÇÇ°¸ñÀÔ´Ï´Ù.
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Injection
System for Valve B(set) ECOM
valve B¸¦ Á¶¸³Çϴµ¥ »ç¿ëÇÕ´Ï´Ù. LUER syringe¿ë
injection systemÀ» Æ÷ÇÔÇÕ´Ï´Ù.
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Stainless
Steel Injection Sample Loops 1/16"
OD analytical
injection valve type D¿Í praparative injection
valve type B¿ëÀ¸·Î Á¦À۵Ǿú½À´Ï´Ù.
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