Showa Denko Shodex RSpak NN-814 User manual

Operation Manual Shodex RSpak NN-814 Version 211102E
Operation Manual
Shodex™ RSpak™NN-814
Europe, Middle East, Africa, Russia
www.shodex.de
Sales Office:
Showa Denko Europe GmbH
Shodex Business
Konrad-Zuse-Platz 3
81829 Munich
Germany
Technical Support:
[e-mail]
+49 (0)89 / 93 99 62 37
Quotes and Orders:
[e-mail]
+49 (0)89 / 93 99 62 34
All manuals and user guides at all-guidesbox.com
all-guidesbox.com

Operation Manual Shodex RSpak NN-814 Version 211102E
2
Operation Manual
Shodex™ RSpak™ NN-814
(Please read this manual carefully to achieve the best and consistent column performance for a long time)
Important Handling Instructions
Caution! • Please consult the Safety Data Sheet (SDS) for the reagents and solvents used with
the columns and understand their proper handling methods to prevent potential
health hazard or death from occurring.
•Please wear appropriate personal protective equipment such as lab goggles and
gloves when handling organic solvents and acid and alkaline reagents. Avoid any direct
physical contact to prevent chemical injuries.
Before Using the Column
(1) Please visually inspect the package and outside of the column for any damage.
(2) Please check if product name and serial number written on the column package, column name tag,
and enclosed Certificate of Analysis (CoA) are matching and correct.
1. Introduction
Thank you for purchasing the Shodex™ product. Shodex™ RSpak™ NN-814 is a multimode (reversed
phase and cation exchange modes) column filled with spherical porous particles of
polyhydroxymethacrylate modified with sulfo group. It is an ideal column for analyzing complex
samples that contain mixture of neutral and ionic substances.
2. Column Components
3. Column Specifications
Product code
Product name
Column Size ID x
Length (mm)
Particle Size
(µm)
Pore Size
(Å)
Theoretical Plate
Number (Per Column)
F7008140
RSpak NN-814
8.0 x 250
10
200
≥ 9,000
F6700510
RSpak NN-G
6.0 x 50
10
-
(Guard Column)
Base Material: Spherical porous particles of polyhydroxymethacrylate modified with
sulfo group
Column Housing: SUS-316 (stainless steel)
Screw Type: Internally-threaded type No. 10-32 UNF
Shipping Solvent: 0.1 M Sodium Phosphate Buffer (pH 3.0)
All manuals and user guides at all-guidesbox.com

Operation Manual Shodex RSpak NN-814 Version 211102E
3
4. Usable conditions
Product Name
Flow Rate (mL/min)
Maximum Pressure
(MPa) (Per Column)
pH
Range
Temperature
Range (°C)
Recommended
Maximum
RSpak NN-814
0.5 - 1.0
1.5
2.0
2 - 12
10 - 60
RSpak NN-G
-
-
-
2 - 12
10 - 60
Usable solvents are listed below.
(1) The standard eluent is a buffer solution or a mixture of buffer and polar organic solvent. Buffers
include phosphate, acetate, and Tris-HCI; and polar organic solvents include acetonitrile, methanol,
and ethanol.
(2) Up to 50 % (v/v) polar organic solvents are usable.
(3) Salts such as sodium chloride, potassium chloride, sodium sulfate can be added up to 0.5 M.
Attention! • Use the column within above stated flow rate, pressure, and temperature ranges.
Using the column outside the given range may damage the column and lower its
performance.
•When using a mixture of buffer (or aqueous solution of salt) and organic solvent,
make sure there is no precipitation of salt.
•When using highly corrosive salts such as sodium chloride, wash out the salts at the
end of analysis. The metal parts of the devices and/or the columns may rust.
•Column pressure is influenced by the eluent composition, flow rate, and column
temperature. When changing the eluent compositions, adjust the flow rate and
column temperature so that the column pressure remains below the usable maximum
pressure.
5. Eluent Preparation
(1) Degas the eluent fully to prevent the formation of air bubbles.
(2) Presence of small debris or insoluble substances may result in deterioration of the column and/or
they appear as noise on the chromatograms. Filter the eluent with a 0.45 μm disposable filter to
prevent the problems.
Attention! • Whenever water is required, use ultra-pure water freshly generated by a water
purification system or water from a newly opened HPLC grade distilled water bottle.
Use HPLC grade organic solvent whenever possible. Solvents left in an opened bottle
for a long time should not be used. The content may have been changed, absorbed
moisture, or has been contaminated.
• Always use freshly prepared solvents. Solvents stored for a long time may have
changed their compositions and may influence elution patterns and/or damage the
column.
Note • Use of on-line degasser is recommended.
6. Sample Preparation
(1) If possible, use the eluent for analysis to dissolve or dilute samples. If this is difficult, use a solvent
which has a composition that is as close as possible to the eluent's composition, but which fully
dissolves or dilutes the sample. When gradient elution is used, it is recommended to use the initial
eluent to prepare the sample.
All manuals and user guides at all-guidesbox.com

Operation Manual Shodex RSpak NN-814 Version 211102E
4
(2) Filter the sample solution using disposable 0.45 μm filter to prevent the column from clogging or
deteriorating.
(3) Recommended sample injection volume is 50 μL per column.
Note • Use of guard column is recommended to protect the analytical column.
7. Column Usage Procedure
7.1. HPLC System Preparation
Wash entire LC system prior to the column installation, including all flow-lines and sample loop by
switching the valve, and then replace the washing solution with the eluent to be used. If desired new
eluent has low miscibility/solubility to the eluent of previous analysis, first use the eluent that is
miscible/soluble to both eluents, and then replace it with the desired eluent.
e.g. When replacing chloroform to water, first run methanol and then introduce water.
e.g. When replacing highly concentrated buffer solution or salt solution to water/acetonitrile, first run
water and then replace it with the eluent.
Attention! • If the eluent left in the system is not compatible with the column to be used, it may
damage the column.
• A drastic change in the eluent compositions may remove substances adsorbed on
the system and they may enter and deteriorate the column.
7.2. Column Installation
(1) Connect the column to LC system by following the “flow direction arrow” () indicated on the
name tag. If guard column is used, position the guard column in front (before the inlet) of the analytical
column.
(2) Make sure to insert the tubing all the way to the end fitting and secure it with the male nut. It is
important that there is no extra space between the tubing and the column side of the end fitting.
Presence of an extra space will let the sample to spread out and may result in wide peaks.
(3) Set the initial flow rate at less than 0.3 mL/min and start the system. If using the column at an
elevated temperature, keep a low flow rate until the temperature of the column reaches to the set
temperature, and then gradually increase the flow rate to the desired.
Caution! • Verify that there is no solvent leak. It may cause electronic leakage, rust, and/or
chemical injury.
Attention! • Make sure not to let air bubbles enter the column while installing the column. The
air bubbles may damage the column.
• When restarting the system after column installation or after holding the eluent
flow, start the system at less than 0.3 mL/min. A rapid increase in pressure can damage
the column.
• If the column was used al an elevated temperature, lower the flow rate to less than
0.3 mL/min at the end of analysis. Then, turn off the column oven, and let the column
All manuals and user guides at all-guidesbox.com

Operation Manual Shodex RSpak NN-814 Version 211102E
5
temperature return to room temperature before stopping the pump. If the pump was
stopped while the eluent inside the column was still hot, as the eluent temperature
decreases, its volume also decreases. This may result in creating an empty space in the
column and deteriorates the column.
Note • It is recommended to set the pump limiter to avoid exceeding the maximum pressure.
7.3. Solvent Exchange
(1) When replacing the solvent, start the system at less than 0.5 mL/min. Recommended solvent
volume to introduce at each step is 3 to 5 times of the column volume.
(2) Check miscibility/solubility of the desired new solvent and the solvent currently filled in the column.
(3) When replacing the current solvent with a solvent with low miscibility/solubility to the current
solvent, first use a solvent that is miscible/soluble to both eluents, and then replace it with the new
solvent.
(4) When using a gradient method, changes in the eluent compositions may increase the column
backpressure. Adjust the flow rate and column temperature so that the column backpressure remains
below the usable maximum pressure.
7.4. Column Cleaning
Problems in peak shapes and elution time changes or elevated column pressure etc. are often caused
by insoluble or adsorbing components present in the eluent and reagents being deposited inside the
column. These problems may be resolved by cleaning the column. If a guard column is used with the
analytical column, first remove the guard column and check the performance of the analytical column
alone. If the problem is solved, most likely the cause is from the guard column. In this case, clean the
guard column.
If the problem is not solved by removing the guard column, clean both guard and analytical columns.
Make sure to clean the guard and the analytical columns separately. When washing the column, let
the washing solution flow from the column outlet go directly into the waste container and not let the
solution go through the detector.
<Cleaning Method>
(1) Insoluble components that block the column inlet may be removed by reversing the flow direction,
i.e., introducing the eluent from the column outlet, with flow rate at less than half of the recommended
flow rate.
(2) In case adsorption of ionic substances is suspected, inject 20-50 μL of 2 M nitric acid aqueous
solution several times while running the eluent of analysis.
8. Column Storage
Remove the column from the system after replacing the in-column solvent with the shipping solvent.
Securely tighten the end caps and store the column at a location with stable temperature (a cool and
dark space is recommended). Refer to section 7.3 Solvent Exchange for how to replace the eluent.
Attention! • Never allow inside of the column to dry. It can damage the column.
All manuals and user guides at all-guidesbox.com

Operation Manual Shodex RSpak NN-814 Version 211102E
6
9. Column Inspection
Inspection method is described in the Certificate of Analysis (CoA). Theoretical Plate Number (N) and
Asymmetry Factor (Fas) were calculated using the below equations.
(1) Theoretical Plate Number (N)
(2) Asymmetry Factor (Fas)
10. Additional Warnings
(1) Do not remove end fittings.
(2) Do not make a strong impact on the column. Do not drop or hit the column on a hard surface.
Refer to the Shodex website (www.shodex.de) for product details and their applications.
For additional assistance, contact the distributor from whom you purchased the column or contact
your regional Shodex support office.
All manuals and user guides at all-guidesbox.com
all-guidesbox.com

Operation Manual Shodex RSpak NN-814 Version 211102E
7
11. Warranty (Version 4)
(1) Showa Denko K.K. warrants that the Shodex™product, at the time of delivery to the user, will conform to the
specification of the attached CERTIFICATE OF ANALYSIS, if the Shodex product is used in accordance with the
attached operating manual. The foregoing warranty is exclusive and is in lieu of all other warranties with respect
to the Shodex product, whether written, oral, implied, statutory or otherwise. No warranties by Showa Denko
K.K. are implied or otherwise created, including, but not limited to, the warranty of merchantability and fitness
for particular purposes.
(2) Any claim of inconformity to the specification must be notified to Showa Denko K.K. within ten (10) days after
delivery to the user. User’s exclusive remedy and Showa Denko K.K.‘s exclusive liability for such claim are limited
to the replacement of the Shodex product in question. In no event is Showa Denko K.K. liable for any indirect,
incidental or consequential damage arising out of in connection with the Shodex Column, whether or not such
damage is allegedly based on breach of warranty, negligence or otherwise.
(3) No warranty is made in any of the following cases:
3-1 If the Shodex product is not used in accordance with the operating manual
3-2 If the Shodex product is remodelled by anyone other than person or firm designated by Showa Denko K.K.
3-3 If the Shodex product is disposed of
3-4 If the Shodex product is resold by the user without giving prior written notice to Showa Denko K.K.
3-5 If the performance of the Shodex product is not conform to the specification of the attached CERTIFICATE OF
ANALYSIS due to any of the reasons below:
a. Computer virus
b. Impurities contained in the sample, reagent, gas air or cooling water provided by the user
c. Breakdown or malfunction of equipment, apparatus or component used in combination with the Shodex
product
d. Force majeure such as fire, earthquake, flood, other natural disaster, crime, riot, act of terrorism, war or
radioactive contamination
(4) In no event is Showa Denko K.K. liable for
4-1 the results of analyses or preparations using the Shodex product or any portion of the same, including, but
not limited to, the reliability, accuracy, efficacy and safety of said results, and
4-2 the occupational hazard in the use of the Shodex product, whether or not such use is made in accordance
with the attached Conditions for use.
(5) The Shodex Column is for laboratory use only. It must not be used for clinical diagnosis. Showa Denko K.K. is
not liable for any use of the Shodex product except laboratory use.
All manuals and user guides at all-guidesbox.com