Shodex Asahipak GS-310 20G Operation Manual Download Page 7

ver.220208E

 

SHOWA DENKO K.K. (https://www.shodex.com/)

 

11. Warranty (Ver. 4COLUMN) 

 

(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 product, 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 remodeled 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 analysis 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 product 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. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Following names are trademarks or registered trademarks of SHOWA DENKO K.K. 
Shodex, AFpak, Asahipak, AXpak, CLNpak, CXpak, HILICpak, MSpak, ODP, OHpak,   
ORpak, RSpak, SUGAR, USPpak. 

 

Products described in the operation manual are not intended for medical use or medical applications.

 

Summary of Contents for Asahipak GS-310 20G

Page 1: ...check if product name and serial number written on the column package column adhesive label and enclosed Certificate of Analysis CoA are matching and correct 1 Introduction Thank you for purchasing the Shodex product Shodex Asahipak GS 310 20G and GS 510 20G are polymer based size exclusion chromatography columns They work well with both aqueous and organic solvents 2 Column Components 3 Column Sp...

Page 2: ...ent It is recommended to dedicate the column for this specific use 4 Surfactants such as SDS and Brij 35 can also be added to the eluent However since surfactants tend to remain on the column solvent replacement after their use takes a longer time than replacement from general solvents The replacement time can be shorten by using 30 50 v v methanol Attention Use the column within above stated flow...

Page 3: ... clogging or deteriorating 3 Recommended injection volume is less than 1 mL per column 4 Viscosity of high molecular weight compound is largely influenced by its molecular weight and concentration Samples with high viscosity cause peak broadening and elution delay and this makes it difficult to obtain their accurate molecular weight distributions In general the larger the molecular weight of the c...

Page 4: ... at less than 3 0 mL min A rapid increase in pressure can damage the column If the column was used at an elevated temperature lower the flow rate to less than 3 0 mL min at the end of analysis Then turn off the column oven and let the column 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 tempera...

Page 5: ... column outlet with flow rate at less than half of the recommended flow rate 2 Follow below cleaning steps for adsorbing components For an efficient cleaning reverse the flow direction and use the flow rate at less than 3 0 mL min Introduce 5 to 10 times column volume of the washing solvent Method 1 Adsorption of hydrophilic compounds when using aqueous eluent Introduce the eluent with a high pola...

Page 6: ...ct on the column Do not drop or hit the column on a hard surface Refer to the Shodex website https www shodex com 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 https www shodex com en support_office list ...

Page 7: ...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 ...

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