Sixteen batches of corn samples (Cultivar Xiangyu No.10) from Enshi Tujia Antonymous Region, China were obtained and summarized in Table 1 . All the samples were cultivated in May 2013 and collected in the autumn of 2013. The raw materials were dried under the sun and kept in a refrigerator at 4°C. The voucher specimen (No. 131013) has been deposited in the College of Food Science and Technology, Huazhong Agricultural University, Wuhan, China. HPLC-grade acetonitrile was purchased from Fisher Chemical (Fair Lawn, NJ, USA), and HPLC-grade water was prepared using a Milli-Q system (Millipore Ibérica, Madrid, Spain). Trifluoroacetic acid (TFA) of HPLC grade was purchased from Sigma Chemical Co. (Saint Louis, MO, USA). All other chemicals and reagents were of analytical purity.
Trifluoroacetic acid tfa of hplc grade
Manufactured by Merck Group
Sourced in United States, Germany
Trifluoroacetic acid (TFA) of HPLC grade is a high-purity chemical compound used as a mobile phase additive in high-performance liquid chromatography (HPLC) analysis. It serves as a volatile ion-pairing agent to improve separation and detection of analytes.
Automatically generated - may contain errors
Lab products found in correlation
Hplc grade acetonitrile, by Thermo Fisher Scientific (1 mentions)
Hydrochloric acid (hcl), by Merck Group (1 mentions)
Phenylalanine, by Merck Group (1 mentions)
Threonine, by Merck Group (1 mentions)
Leucine, by Merck Group (1 mentions)
Methionine, by Merck Group (1 mentions)
Isoleucine, by Merck Group (1 mentions)
Tryptophan, by Merck Group (1 mentions)
Histidine, by Merck Group (1 mentions)
Tyrosine, by Merck Group (1 mentions)
2 protocols using trifluoroacetic acid tfa of hplc grade
1
Characterization of Corn Samples from China
2
Amino Acid Composition Analysis
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Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, tyrosine, and hydrochloric acid of American Chemical Society (ACS) grade were obtained from Sigma-Aldrich (Saint Louis, USA). Boric acid was obtained from Spectrum (India). Fluorenylmethyloxycarbonyl chloride (FMOC-Cl) was purchased from Apollo Scientific Limited (India). Acetonitrile of UPLC grade was obtained from Biosolve (Chimie, France). Trifluoroacetic acid (TFA) of HPLC grade was purchased from Sigma-Aldrich (Germany). The chromatography water of HPLC grade was obtained from Merck (India). The essential amino acid tablets (Auximin® produced by Alniche LifeSciences Pvt. Ltd.) were obtained from the Netmeds pharmacy, India.
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