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薄层色谱（TLC）点样针上的针头从3/4英寸处涂上聚四氟乙烯涂层。该涂层降低了针和液体之间的表面张力，使其成为理想的可重复样品点样。TLC注射器可用作胶合针（SNTLC）或替换针，以安装到标准可更换针（RN）注射器中。
Hamilton 用于TLC薄层色谱的点样针 注射器 进样针 订货信息：
| TLC Cemented Needle Syringes | |
| 80050 | 10 µL, Model 1701 N SYR, Cemented NDL, 26s ga, 2 in, point style 3T |
| 80250 | 25 µL, Model 1702 N SYR, Cemented NDL, 22s ga, 2 in, point style 3T |
| 80950 | 50 µL, Model 1705 N SYR, Cemented NDL, 22 ga, 2 in, point style 3T |
| 81050 | 100 µL, Model 1710 N SYR, Cemented NDL, 22 ga, 2 in, point style 3T |
| Removable Needle Syringes (No Needle) | |
| ‘7632-01 | 7632-01, 2.5 µL Microliter Syringe Model 62 RN, Small Removable Needle, Needle Sold Separately |
| ‘7633-01 | 7633-01, 5 µL Microliter Syringe Model 65 RN, Small Removable Needle, Needle Sold Separately |
| ‘7634-01 | 5 µL, Model 75 RN SYR, NDL Sold Separately |
| ‘7635-01 | 10 µL, Model 701 RN SYR, NDL Sold Separately |
| ‘7636-01 | 25 µL, Model 702 RN SYR, NDL Sold Separately |
| ‘7637-01 | 50 µL, Model 705 RN SYR, NDL Sold Separately |
| ‘7638-01 | 100 µL, Model 710 RN SYR, NDL Sold Separately |
| ‘7639-01 | 250 µL, Model 725 RN SYR, NDL Sold Separately |
| ‘7640-01 | 500 µL, Model 750 RN SYR, NDL Sold Separately |
| ‘7649-01 | 1 mL, Model 1001 RN SYR, NDL Sold Separately |
| ‘7650-01 | 2.5 mL, Model 1002 RN SYR, NDL Sold Separately |
| ‘7651-01 | 5 mL, Model 1005 RN SYR, NDL Sold Separately |
| ‘7652-01 | 10 mL, Model 1010 RN SYR, NDL Sold Separately |
| ‘7653-01 | 7653-01, 10 µL Gastight Syringe Model 1701 RN, Small Removable Needle, Needle Sold Separately |
| ‘7654-01 | 7654-01, 25 µL Gastight Syringe Model 1702 RN, Small Removable Needle, Needle Sold Separately |
| ‘7655-01 | 50 µL, Model 1705 RN SYR, NDL Sold Separately |
| ‘7656-01 | 100 µL, Model 1710 RN SYR, NDL Sold Separately |
| ‘7657-01 | 250 µL, Model 1725 RN SYR, NDL Sold Separately |
| ‘7658-01 | 500 µL, Model 1750 RN SYR, NDL Sold Separately |
| TLC Replacement Removable Needles | |
| ‘8646-01 | 22 gauge, Large Hub RN NDL, custom length (0.75 to 6.5 in), point style 3T, 6/PK |
| ‘8646-02 | 26s gauge, Small Hub RN NDL, custom length (0.75 to 6.5 in), point style 3T, 6/PK |
| ‘8646-03 | 22s gauge, Small Hub RN NDL, custom length (0.75 to 6.5 in), point style 3T, 6/PK |
| ‘8646-05 | 22 gauge, Small Hub RN NDL, custom length (0.75 to 6.5 in), point style 3T, 6/PK |
Hamilton 用于TLC薄层色谱的点样针 注射器 进样针
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Hamilton进样针针头产品根据不同的应用领域提供不同的针头样式。标准的针头都是用不锈钢制造的，优化过程根据使用和进样针容量制定。针头的标准长度为51毫米，标准针尖类型为2或者3。
标准的针号：
l 26s，用于5μL和10μL的进样针。
l 22s，用于25μL和250μL的进样针。
l 22，用于500μL或以上的进样针。
pst2：用于色谱分析的标准针头，10~12°斜边角，非中心取点，建议用于隔膜穿透。（针号分布从22s~26s的针头用于隔膜穿透上理想）
pst3： 90°斜边角，主要使用在HPLC注射阀上。有精确的进样量，建议用于样品移液。（如薄层色谱法）
pst4：针头角度是10~12°，并且动物注射后会留下明显的尖点。
pst5:：带有密闭端口和边孔的圆锥形针头，隔膜被刺穿时，能避免端口被阻塞。可用针号分布从10~26s。精细校准的非结晶乙烯基塑料针头，具有理想的隔膜刺穿效果。
pstAS:：带有8°的锥形针头，被设计用来刺穿GC自动取样器的隔片。提供26,26s,23,23s,22,22s的标准针头，其他型号针头需要定购。
这些针头都是经过电子抛光和电镀细化的，是一个电化学去除材料影响和毛刺的制造工艺。这种工艺被用于pst2和pst3针头的制造，以限度减小刺穿时对于生物膜的破坏。可电镀细化的针头范围为10~26s。SN针头只有标准的锥形针头。