先使微生物在极低温度(-70℃左右)下快速冷冻,然后在减压下利用升华现象除去水分(真空干燥)。有些方法如滤纸保藏法、液氮保藏法和冷冻干燥保藏法等均需使用保护剂来制备细胞悬液,以防止因冷冻或水分不断升华对细胞的损害。保护性溶质可通过氢和离子键对水和细胞所产生的亲和力来稳定细胞成分的构型。保护剂有牛乳、血清、糖类、甘油、二甲亚砜等。
Bradykinin (human - rat - mouse)96 wells进口DRG原装
BPI, anti- Elisa96 wells进口DRG原装
Borrelia IgM Elisa (recombinant)96 wells进口DRG原装
Borrelia IgG Elisa (recombinant)96 wells进口DRG原装
Borrelia Detect (cassettes)5 cass.进口DRG原装
Borrelia burgdorferi IgM Elisa96 wells进口DRG原装
Borrelia burgdorferi IgM (Lyme ) (ref. sera opt., price on req.)96 wells进口DRG原装
Borrelia burgdorferi IgG/IgM (Lyme ) (ref. sera opt., price on req.)96 wells进口DRG原装
Borrelia burgdorferi IgG Elisa96 wells进口DRG原装
Borrelia burgdorferi IgG (Lyme) ( ref. sera opt., price on req.)96 wells进口DRG原装
Borrelia burgdorferi Canine Ab Elisa96 wells进口DRG原装
Borrelia Blot IgM (anti-Borrelia)27 tests进口DRG原装
Borrelia Blot IgG, (anti-Borrelia)27 tests进口DRG原装
Bordetella pertussis IgM / toxin96 wells进口DRG原装
Bordetella pertussis IgG / toxin96 wells进口DRG原装
Bordetella pertussis IgA / toxin96 wells进口DRG原装
BNP-32, (rat) (Brain Natriuretic Peptide) EIA96 wells进口DRG原装
BLV (Bovine Leukemia Virus) p24/gp51 antibodies (serum)96 wells进口DRG原装
BLV (Bovine Leukemia Virus) p24/gp51 antibodies (milk)96 wells进口DRG原装
BLV (Bovine Leukemea Virus) p24 blockin AB, MCA based96 wells进口DRG原装
Benzodiazepines (test strip)each进口DRG原装
Benzodiazepines (one step dipstick test) (drug of abuse) (FDA)each进口DRG原装
Benzodiazepines (dipstick) (FDA) min. 500 testseach进口DRG原装
Benzodiazepines (cassette) (7mm) (FDA) (25 tests per kit) min. 500 teststest进口DRG原装
Benzodiazepine Drug Screen (cassettes)50 tests进口DRG原装
Barbiturates teststrip进口DRG原装
Barbiturates strip (min order 1000)each进口DRG原装
Barbiturates one step test (cassette) (drug of abuse) (FDA)each进口DRG原装
Barbiturates one step dipstick (drug of abuse) (FDA)each进口DRG原装
Barbiturates (dipstick) (FDA) min. 500 testseach进口DRG原装
Barbiturates (cassette) (FDA) (25 tests per kit) min. 500 teststest进口DRG原装
酱油曲霉使用说明书Avian Leukosis Virus-p27 antigen96 wells进口DRG原装
Avian Influenza A Nucleoprotein Ag Capture5 x 96 wells进口DRG原装
Astrovirus Ag (stool) Elisa96 wells进口DRG原装
Aspergillus fumigatus IgM96 wells进口DRG原装
Aspergillus fumigatus IgG96 wells进口DRG原装
Aspergillus fumigatus IgA96 wells进口DRG原装
ASO Latex Agglutination Test (slides) (min. order EU 400)100 slides进口DRG原装
ASGPR - Anti-ASGPR Elisa96 wells进口DRG原装
ASCA IgA Elisa96 wells进口DRG原装
ASCA combi Elisa96 wells进口DRG原装
ASCA IgG, Elisa96 wells进口DRG原装
APO A (Apolipoprotein)96 wells进口DRG原装
Apelin-C Terminus (human/mouse/rat) Elisa96 wells进口DRG原装
Anti-Intrinsic Factor Elisa96 wells进口DRG原装
ANP, alpha- (human) (Atrial Natriuretic Polypeptide )96 wells进口DRG原装
Annexin V IgG/IgM, anti-96 wells进口DRG原装
Annexin V (human) Elis96 wells进口DRG原装
Animal Insulin Control (3 vials /ea.0.5ml)1 vial进口DRG原装
Angiotensin 296 wells进口DRG原装
Angiotensin 196 wells进口DRG原装
Androstenedione Saliva Elisa96 wells进口DRG原装
Androstenedione Saliva96 wells进口DRG原装
Androstenedione Elisa96 wells进口DRG原装
Androstane, 5a-Androstane-3a, 17beta-diol Glucuronide (3a Diol G)96 wells进口DRG原装
ANCA Screen IgG96 wells进口DRG原装
ANCA Screen Elisa96 wells进口DRG原装